Classify navigations without page id in parallel to the existing classifier.

content/browser/frame_host/navigation_controller_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
@@ skipping 302 matching lines @@
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const int kNumUrls = 5;
   std::vector<GURL> urls(kNumUrls);
   for (int i = 0; i < kNumUrls; ++i) {
     urls[i] = GURL(base::StringPrintf("http://www.a.com/%d", i));
   }
 
   main_test_rfh()->SendRendererInitiatedNavigationRequest(urls[0], true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, urls[0]);
+  main_test_rfh()->SendNavigate(0, 0, true, urls[0]);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(urls[0], controller.GetVisibleEntry()->GetVirtualURL());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_FALSE(controller.CanGoToOffset(1));
 
   for (int i = 1; i <= 4; ++i) {
     main_test_rfh()->SendRendererInitiatedNavigationRequest(urls[i], true);
     main_test_rfh()->PrepareForCommit();
-    main_test_rfh()->SendNavigate(i, urls[i]);
+    main_test_rfh()->SendNavigate(i, 0, true, urls[i]);
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
     EXPECT_EQ(urls[i], controller.GetVisibleEntry()->GetVirtualURL());
     EXPECT_TRUE(controller.CanGoToOffset(-i));
     EXPECT_FALSE(controller.CanGoToOffset(-(i + 1)));
     EXPECT_FALSE(controller.CanGoToOffset(1));
   }
 
   // We have loaded 5 pages, and are currently at the last-loaded page.
   int url_index = 4;
@@ skipping 11 matching lines @@
     GO_TO_MIDDLE_PAGE,
     GO_FORWARDS,
     GO_BACKWARDS,
     GO_TO_BEGINNING,
     GO_TO_END
   };
 
   for (int test = 0; test < NUM_TESTS; ++test) {
     int offset = test_offsets[test];
     controller.GoToOffset(offset);
+    int entry_id = controller.GetPendingEntry()->GetUniqueID();
     url_index += offset;
     // Check that the GoToOffset will land on the expected page.
     EXPECT_EQ(urls[url_index], controller.GetPendingEntry()->GetVirtualURL());
     main_test_rfh()->PrepareForCommit();
-    main_test_rfh()->SendNavigate(url_index, urls[url_index]);
+    main_test_rfh()->SendNavigate(url_index, entry_id, false, urls[url_index]);
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
     // Check that we can go to any valid offset into the history.
     for (size_t j = 0; j < urls.size(); ++j)
       EXPECT_TRUE(controller.CanGoToOffset(j - url_index));
     // Check that we can't go beyond the beginning or end of the history.
     EXPECT_FALSE(controller.CanGoToOffset(-(url_index + 1)));
     EXPECT_FALSE(controller.CanGoToOffset(urls.size() - url_index));
   }
 }
 
 TEST_F(NavigationControllerTest, LoadURL) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   // Creating a pending notification should not have issued any of the
   // notifications we're listening for.
   EXPECT_EQ(0U, notifications.size());
 
   // The load should now be pending.
   EXPECT_EQ(controller.GetEntryCount(), 0);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), -1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_FALSE(controller.GetLastCommittedEntry());
   ASSERT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(controller.GetPendingEntry(), controller.GetVisibleEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_EQ(contents()->GetMaxPageID(), -1);
 
   // Neither the timestamp nor the status code should have been set yet.
   EXPECT_TRUE(controller.GetPendingEntry()->GetTimestamp().is_null());
   EXPECT_EQ(0, controller.GetPendingEntry()->GetHttpStatusCode());
 
   // We should have gotten no notifications from the preceeding checks.
   EXPECT_EQ(0U, notifications.size());
 
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The load should now be committed.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   ASSERT_TRUE(controller.GetVisibleEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_EQ(contents()->GetMaxPageID(), 0);
   EXPECT_EQ(0, controller.GetLastCommittedEntry()->bindings());
 
   // The timestamp should have been set.
   EXPECT_FALSE(controller.GetVisibleEntry()->GetTimestamp().is_null());
 
   // Load another...
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   // The load should now be pending.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   ASSERT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(controller.GetPendingEntry(), controller.GetVisibleEntry());
   // TODO(darin): maybe this should really be true?
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_EQ(contents()->GetMaxPageID(), 0);
 
   EXPECT_TRUE(controller.GetPendingEntry()->GetTimestamp().is_null());
 
   // Simulate the beforeunload ack for the cross-site transition, and then the
   // commit.
   main_test_rfh()->PrepareForCommit();
-  contents()->GetPendingMainFrame()->SendNavigate(1, url2);
+  contents()->GetPendingMainFrame()->SendNavigate(1, entry_id, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The load should now be committed.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   ASSERT_TRUE(controller.GetVisibleEntry());
@@ skipping 19 matching lines @@
 
   // Set the clock to always return a timestamp of 1.
   controller.SetGetTimestampCallbackForTest(
       base::Bind(&GetFixedTime, base::Time::FromInternalValue(1)));
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Load another...
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   // Simulate the beforeunload ack for the cross-site transition, and then the
   // commit.
   main_test_rfh()->PrepareForCommit();
-  contents()->GetPendingMainFrame()->SendNavigate(1, url2);
+  contents()->GetPendingMainFrame()->SendNavigate(1, entry_id, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The two loads should now be committed.
   ASSERT_EQ(controller.GetEntryCount(), 2);
 
   // Timestamps should be distinct despite the clock returning the
   // same value.
   EXPECT_EQ(1u,
             controller.GetEntryAtIndex(0)->GetTimestamp().ToInternalValue());
@@ skipping 96 matching lines @@
 // the load commits (because WebCore didn't actually make a new entry).
 TEST_F(NavigationControllerTest, LoadURL_SamePage) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   ASSERT_TRUE(controller.GetVisibleEntry());
   const base::Time timestamp = controller.GetVisibleEntry()->GetTimestamp();
   EXPECT_FALSE(timestamp.is_null());
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, false, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // We should not have produced a new session history entry.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   ASSERT_TRUE(controller.GetVisibleEntry());
@@ skipping 13 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = controller.GetPendingEntry()->GetUniqueID();
+  params.did_create_new_entry = true;
   params.url = url1;
   params.transition = ui::PAGE_TRANSITION_TYPED;
   params.is_post = true;
   params.post_id = 123;
   params.page_state = PageState::CreateForTesting(url1, false, 0, 0);
   main_test_rfh()->PrepareForCommit();
   main_test_rfh()->SendNavigateWithParams(&params);
 
   // The post data should be visible.
   NavigationEntry* entry = controller.GetVisibleEntry();
   ASSERT_TRUE(entry);
   EXPECT_TRUE(entry->GetHasPostData());
   EXPECT_EQ(entry->GetPostID(), 123);
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, controller.GetPendingEntry()->GetUniqueID(),
+                                false, url1);
 
   // We should not have produced a new session history entry.
   ASSERT_EQ(controller.GetVisibleEntry(), entry);
 
   // The post data should have been cleared due to the GET.
   EXPECT_FALSE(entry->GetHasPostData());
   EXPECT_EQ(entry->GetPostID(), 0);
 }
 
 // Tests loading a URL but discarding it before the load commits.
 TEST_F(NavigationControllerTest, LoadURL_Discarded) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   ASSERT_TRUE(controller.GetVisibleEntry());
   const base::Time timestamp = controller.GetVisibleEntry()->GetTimestamp();
   EXPECT_FALSE(timestamp.is_null());
 
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   controller.DiscardNonCommittedEntries();
@@ skipping 17 matching lines @@
 // navigates from the web page, and here we test that there is no pending entry.
 TEST_F(NavigationControllerTest, LoadURL_NoPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make an existing committed entry.
   const GURL kExistingURL1("http://eh");
   controller.LoadURL(
       kExistingURL1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
+  main_test_rfh()->SendNavigate(0, entry_id, true, kExistingURL1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Do a new navigation without making a pending one.
   const GURL kNewURL("http://see");
-  main_test_rfh()->SendNavigate(99, kNewURL);
+  main_test_rfh()->SendNavigate(99, 0, true, kNewURL);
 
-  // There should no longer be any pending entry, and the third navigation we
+  // There should no longer be any pending entry, and the second navigation we
   // just made should be committed.
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kNewURL, controller.GetVisibleEntry()->GetURL());
 }
 
 // Tests navigating to a new URL when there is a new pending navigation that is
 // not the one that just loaded. This will happen if the user types in a URL to
 // somewhere slow, and then navigates the current page before the typed URL
 // commits.
 TEST_F(NavigationControllerTest, LoadURL_NewPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make an existing committed entry.
   const GURL kExistingURL1("http://eh");
   controller.LoadURL(
       kExistingURL1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, kExistingURL1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Make a pending entry to somewhere new.
   const GURL kExistingURL2("http://bee");
   controller.LoadURL(
       kExistingURL2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_EQ(0U, notifications.size());
 
   // After the beforeunload but before it commits...
   main_test_rfh()->PrepareForCommit();
 
   // ... Do a new navigation.
   const GURL kNewURL("http://see");
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kNewURL, true);
   main_test_rfh()->PrepareForCommit();
-  contents()->GetMainFrame()->SendNavigate(3, kNewURL);
+  contents()->GetMainFrame()->SendNavigate(3, 0, true, kNewURL);
 
   // There should no longer be any pending entry, and the third navigation we
   // just made should be committed.
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kNewURL, controller.GetVisibleEntry()->GetURL());
 }
 
 // Tests navigating to a new URL when there is a pending back/forward
 // navigation. This will happen if the user hits back, but before that commits,
 // they navigate somewhere new.
 TEST_F(NavigationControllerTest, LoadURL_ExistingPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make some history.
   const GURL kExistingURL1("http://foo/eh");
   controller.LoadURL(
       kExistingURL1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, kExistingURL1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   const GURL kExistingURL2("http://foo/bee");
   controller.LoadURL(
       kExistingURL2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, kExistingURL2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, kExistingURL2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now make a pending back/forward navigation. The zeroth entry should be
   // pending.
   controller.GoBack();
   EXPECT_EQ(0U, notifications.size());
   EXPECT_EQ(0, controller.GetPendingEntryIndex());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
 
   // Before that commits, do a new navigation.
   const GURL kNewURL("http://foo/see");
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kNewURL, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, kNewURL);
+  main_test_rfh()->SendNavigate(3, 0, true, kNewURL);
 
-  // There should no longer be any pending entry, and the third navigation we
+  // There should no longer be any pending entry, and the new navigation we
   // just made should be committed.
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(2, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kNewURL, controller.GetVisibleEntry()->GetURL());
 }
 
 // Tests navigating to a new URL when there is a pending back/forward
 // navigation to a cross-process, privileged URL. This will happen if the user
 // hits back, but before that commits, they navigate somewhere new.
 TEST_F(NavigationControllerTest, LoadURL_PrivilegedPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make some history, starting with a privileged URL.
   const GURL kExistingURL1("http://privileged");
   controller.LoadURL(
       kExistingURL1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   // Pretend it has bindings so we can tell if we incorrectly copy it.
   main_test_rfh()->GetRenderViewHost()->AllowBindings(2);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, kExistingURL1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Navigate cross-process to a second URL.
   const GURL kExistingURL2("http://foo/eh");
   controller.LoadURL(
       kExistingURL2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
   TestRenderFrameHost* foo_rfh = contents()->GetPendingMainFrame();
-  foo_rfh->SendNavigate(1, kExistingURL2);
+  foo_rfh->SendNavigate(1, entry_id, true, kExistingURL2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now make a pending back/forward navigation to a privileged entry.
   // The zeroth entry should be pending.
   controller.GoBack();
   foo_rfh->SendBeforeUnloadACK(true);
   EXPECT_EQ(0U, notifications.size());
   EXPECT_EQ(0, controller.GetPendingEntryIndex());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(2, controller.GetPendingEntry()->bindings());
 
   // Before that commits, do a new navigation.
   const GURL kNewURL("http://foo/bee");
   foo_rfh->SendRendererInitiatedNavigationRequest(kNewURL, true);
   foo_rfh->PrepareForCommit();
-  foo_rfh->SendNavigate(3, kNewURL);
+  foo_rfh->SendNavigate(3, 0, true, kNewURL);
 
-  // There should no longer be any pending entry, and the third navigation we
+  // There should no longer be any pending entry, and the new navigation we
   // just made should be committed.
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(2, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kNewURL, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(0, controller.GetLastCommittedEntry()->bindings());
 }
 
 // Tests navigating to an existing URL when there is a pending new navigation.
 // This will happen if the user enters a URL, but before that commits, the
 // current page fires history.back().
 TEST_F(NavigationControllerTest, LoadURL_BackPreemptsPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make some history.
   const GURL kExistingURL1("http://foo/eh");
   controller.LoadURL(
       kExistingURL1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, kExistingURL1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   const GURL kExistingURL2("http://foo/bee");
   controller.LoadURL(
       kExistingURL2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, kExistingURL2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, kExistingURL2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // A back navigation comes in from the renderer...
   controller.GoToOffset(-1);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   // ...while the user tries to navigate to a new page...
   const GURL kNewURL("http://foo/see");
   controller.LoadURL(
       kNewURL, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_EQ(0U, notifications.size());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
 
   // ...and the back navigation commits.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kExistingURL1);
+  main_test_rfh()->SendNavigate(0, entry_id, false, kExistingURL1);
 
   // There should no longer be any pending entry, and the back navigation should
   // be committed.
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kExistingURL1, controller.GetVisibleEntry()->GetURL());
 }
 
@@ skipping 17 matching lines @@
   const GURL kNewURL("http://eh");
   controller.LoadURL(
       kNewURL, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_EQ(0U, notifications.size());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(-1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(1, delegate->navigation_state_change_count());
 
   // Before that commits, a document.write and location.reload can cause the
-  // renderer to send a FrameNavigate with page_id -1.
+  // renderer to send a FrameNavigate with page_id -1 and nav_entry_id 0.
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kExistingURL, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(-1, kExistingURL);
+  main_test_rfh()->SendNavigate(-1, 0, false, kExistingURL);
 
   // This should clear the pending entry and notify of a navigation state
   // change, so that we do not keep displaying kNewURL.
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_EQ(-1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(2, delegate->navigation_state_change_count());
 
   contents()->SetDelegate(NULL);
 }
@@ skipping 55 matching lines @@
 // redirect and abort.  See http://crbug.com/83031.
 TEST_F(NavigationControllerTest, LoadURL_RedirectAbortDoesntShowPendingURL) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // First make an existing committed entry.
   const GURL kExistingURL("http://foo/eh");
   controller.LoadURL(kExistingURL, content::Referrer(),
                      ui::PAGE_TRANSITION_TYPED, std::string());
-  main_test_rfh()->SendNavigate(1, kExistingURL);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
+  main_test_rfh()->SendNavigate(1, entry_id, true, kExistingURL);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Set a WebContentsDelegate to listen for state changes.
   scoped_ptr<TestWebContentsDelegate> delegate(new TestWebContentsDelegate());
   EXPECT_FALSE(contents()->GetDelegate());
   contents()->SetDelegate(delegate.get());
 
   // Now make a pending new navigation, initiated by the renderer.
   const GURL kNewURL("http://foo/bee");
@@ skipping 51 matching lines @@
   std::vector<GURL> url_chain;
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   // Navigate to a first, unprivileged URL.
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_EQ(NavigationEntryImpl::kInvalidBindings,
             controller.GetPendingEntry()->bindings());
+  int entry1_id = controller.GetPendingEntry()->GetUniqueID();
 
   // Commit.
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   orig_rfh->PrepareForCommit();
-  orig_rfh->SendNavigate(0, url1);
+  orig_rfh->SendNavigate(0, entry1_id, true, url1);
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(0, controller.GetLastCommittedEntry()->bindings());
+  entry1_id = controller.GetLastCommittedEntry()->GetUniqueID();
 
   // Manually increase the number of active frames in the SiteInstance
   // that orig_rfh belongs to, to prevent it from being destroyed when
   // it gets swapped out, so that we can reuse orig_rfh when the
   // controller goes back.
   orig_rfh->GetSiteInstance()->increment_active_frame_count();
 
   // Navigate to a second URL, simulate the beforeunload ack for the cross-site
   // transition, and set bindings on the pending RenderViewHost to simulate a
   // privileged url.
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   orig_rfh->PrepareForCommit();
   TestRenderFrameHost* new_rfh = contents()->GetPendingMainFrame();
   new_rfh->GetRenderViewHost()->AllowBindings(1);
-  new_rfh->SendNavigate(1, url2);
+  new_rfh->SendNavigate(1, entry_id, true, url2);
 
   // The second load should be committed, and bindings should be remembered.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_EQ(1, controller.GetLastCommittedEntry()->bindings());
 
   // Going back, the first entry should still appear unprivileged.
   controller.GoBack();
   new_rfh->PrepareForCommit();
-  orig_rfh->SendNavigate(0, url1);
+  orig_rfh->SendNavigate(0, entry1_id, false, url1);
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(0, controller.GetLastCommittedEntry()->bindings());
 }
 
 TEST_F(NavigationControllerTest, Reload) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   ASSERT_TRUE(controller.GetVisibleEntry());
   controller.GetVisibleEntry()->SetTitle(base::ASCIIToUTF16("Title"));
+  entry_id = controller.GetLastCommittedEntry()->GetUniqueID();
+
   controller.Reload(true);
   EXPECT_EQ(0U, notifications.size());
 
   const base::Time timestamp = controller.GetVisibleEntry()->GetTimestamp();
   EXPECT_FALSE(timestamp.is_null());
 
   // The reload is pending.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   // Make sure the title has been cleared (will be redrawn just after reload).
   // Avoids a stale cached title when the new page being reloaded has no title.
   // See http://crbug.com/96041.
   EXPECT_TRUE(controller.GetVisibleEntry()->GetTitle().empty());
 
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, false, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now the reload is committed.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 
   // The timestamp should have been updated.
   ASSERT_TRUE(controller.GetVisibleEntry());
   EXPECT_GE(controller.GetVisibleEntry()->GetTimestamp(), timestamp);
 }
 
 // Tests what happens when a reload navigation produces a new page.
 TEST_F(NavigationControllerTest, Reload_GeneratesNewPage) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
+  entry_id = controller.GetLastCommittedEntry()->GetUniqueID();
 
   controller.Reload(true);
   EXPECT_EQ(0U, notifications.size());
 
   main_test_rfh()->PrepareForCommitWithServerRedirect(url2);
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now the reload is committed.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 }
 
 // This test ensures that when a guest renderer reloads, the reload goes through
 // without ending up in the "we have a wrong process for the URL" branch in
 // NavigationControllerImpl::ReloadInternal.
 TEST_F(NavigationControllerTest, ReloadWithGuest) {
   NavigationControllerImpl& controller = controller_impl();
 
   const GURL url1("http://foo1");
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  main_test_rfh()->SendNavigate(0, url1);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   ASSERT_TRUE(controller.GetVisibleEntry());
 
   // Make the entry believe its RenderProcessHost is a guest.
   NavigationEntryImpl* entry1 = controller.GetVisibleEntry();
   reinterpret_cast<MockRenderProcessHost*>(
       entry1->site_instance()->GetProcess())->set_is_isolated_guest(true);
 
   // And reload.
   controller.Reload(true);
 
@@ skipping 12 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL original_url("http://foo1");
   const GURL final_url("http://foo2");
 
   // Load up the original URL, but get redirected.
   controller.LoadURL(
       original_url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
   main_test_rfh()->PrepareForCommitWithServerRedirect(final_url);
-  main_test_rfh()->SendNavigateWithOriginalRequestURL(
-      0, final_url, original_url);
+  main_test_rfh()->SendNavigateWithOriginalRequestURL(0, entry_id, true,
+                                                      final_url, original_url);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
+  entry_id = controller.GetLastCommittedEntry()->GetUniqueID();
 
   // The NavigationEntry should save both the original URL and the final
   // redirected URL.
   EXPECT_EQ(
       original_url, controller.GetVisibleEntry()->GetOriginalRequestURL());
   EXPECT_EQ(final_url, controller.GetVisibleEntry()->GetURL());
 
   // Reload using the original URL.
   controller.GetVisibleEntry()->SetTitle(base::ASCIIToUTF16("Title"));
   controller.ReloadOriginalRequestURL(false);
   EXPECT_EQ(0U, notifications.size());
 
   // The reload is pending.  The request should point to the original URL.
   EXPECT_EQ(original_url, navigated_url());
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 
   // Make sure the title has been cleared (will be redrawn just after reload).
   // Avoids a stale cached title when the new page being reloaded has no title.
   // See http://crbug.com/96041.
   EXPECT_TRUE(controller.GetVisibleEntry()->GetTitle().empty());
 
   // Send that the navigation has proceeded; say it got redirected again.
   main_test_rfh()->PrepareForCommitWithServerRedirect(final_url);
-  main_test_rfh()->SendNavigate(0, final_url);
+  main_test_rfh()->SendNavigate(0, entry_id, false, final_url);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now the reload is committed.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 }
 
 #endif  // !defined(OS_ANDROID)
 
 // Test that certain non-persisted NavigationEntryImpl values get reset after
 // commit.
 TEST_F(NavigationControllerTest, ResetEntryValuesAfterCommit) {
   NavigationControllerImpl& controller = controller_impl();
 
   // The value of "should replace entry" will be tested, but it's an error to
   // specify it when there are no entries. Create a simple entry to be replaced.
   const GURL url0("http://foo/0");
   controller.LoadURL(
       url0, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  main_test_rfh()->SendNavigate(0, url0);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
+  main_test_rfh()->SendNavigate(0, entry_id, true, url0);
 
   // Set up the pending entry.
   const GURL url1("http://foo/1");
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   // Set up some sample values.
   const unsigned char* raw_data =
       reinterpret_cast<const unsigned char*>("post\n\n\0data");
   const int length = 11;
   std::vector<unsigned char> post_data_vector(raw_data, raw_data+length);
   scoped_refptr<base::RefCountedBytes> post_data =
       base::RefCountedBytes::TakeVector(&post_data_vector);
   GlobalRequestID transfer_id(3, 4);
 
   // Set non-persisted values on the pending entry.
   NavigationEntryImpl* pending_entry = controller.GetPendingEntry();
   pending_entry->SetBrowserInitiatedPostData(post_data.get());
   pending_entry->set_is_renderer_initiated(true);
   pending_entry->set_transferred_global_request_id(transfer_id);
   pending_entry->set_should_replace_entry(true);
   pending_entry->set_should_clear_history_list(true);
   EXPECT_EQ(post_data.get(), pending_entry->GetBrowserInitiatedPostData());
   EXPECT_TRUE(pending_entry->is_renderer_initiated());
   EXPECT_EQ(transfer_id, pending_entry->transferred_global_request_id());
   EXPECT_TRUE(pending_entry->should_replace_entry());
   EXPECT_TRUE(pending_entry->should_clear_history_list());
 
   // Fake a commit response.
-  main_test_rfh()->SendNavigate(1, url1);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url1);
 
   // Certain values that are only used for pending entries get reset after
   // commit.
   NavigationEntryImpl* committed_entry = controller.GetLastCommittedEntry();
   EXPECT_FALSE(committed_entry->GetBrowserInitiatedPostData());
   EXPECT_FALSE(committed_entry->is_renderer_initiated());
   EXPECT_EQ(GlobalRequestID(-1, -1),
             committed_entry->transferred_global_request_id());
   EXPECT_FALSE(committed_entry->should_replace_entry());
   EXPECT_FALSE(committed_entry->should_clear_history_list());
 }
 
 // Test that Redirects are preserved after a commit.
 TEST_F(NavigationControllerTest, RedirectsAreNotResetByCommit) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL url1("http://foo1");
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   // Set up some redirect values.
   std::vector<GURL> redirects;
   redirects.push_back(GURL("http://foo2"));
 
   // Set redirects on the pending entry.
   NavigationEntryImpl* pending_entry = controller.GetPendingEntry();
   pending_entry->SetRedirectChain(redirects);
   EXPECT_EQ(1U, pending_entry->GetRedirectChain().size());
   EXPECT_EQ(GURL("http://foo2"), pending_entry->GetRedirectChain()[0]);
 
   // Normal navigation will preserve redirects in the committed entry.
-  main_test_rfh()->SendNavigateWithRedirects(0, url1, redirects);
+  main_test_rfh()->SendNavigateWithRedirects(0, entry_id, true, url1,
+                                             redirects);
   NavigationEntryImpl* committed_entry = controller.GetLastCommittedEntry();
   ASSERT_EQ(1U, committed_entry->GetRedirectChain().size());
   EXPECT_EQ(GURL("http://foo2"), committed_entry->GetRedirectChain()[0]);
 }
 
 // Tests what happens when we navigate back successfully
 TEST_F(NavigationControllerTest, Back) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   const GURL url2("http://foo2");
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, 0, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   controller.GoBack();
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(0U, notifications.size());
 
   // We should now have a pending navigation to go back.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoToOffset(-1));
   EXPECT_TRUE(controller.CanGoForward());
   EXPECT_TRUE(controller.CanGoToOffset(1));
-  EXPECT_FALSE(controller.CanGoToOffset(2));  // Cannot go foward 2 steps.
+  EXPECT_FALSE(controller.CanGoToOffset(2));  // Cannot go forward 2 steps.
 
   // Timestamp for entry 1 should be on or after that of entry 0.
   EXPECT_FALSE(controller.GetEntryAtIndex(0)->GetTimestamp().is_null());
   EXPECT_GE(controller.GetEntryAtIndex(1)->GetTimestamp(),
             controller.GetEntryAtIndex(0)->GetTimestamp());
 
-  main_test_rfh()->SendNavigate(0, url2);
+  main_test_rfh()->SendNavigate(0, entry_id, false, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The back navigation completed successfully.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
@@ skipping 13 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo/1");
   const GURL url2("http://foo/2");
   const GURL url3("http://foo/3");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry1_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry1_id, true, url1);
+  EXPECT_EQ(1U, navigation_entry_committed_counter_);
+  navigation_entry_committed_counter_ = 0;
+  entry1_id = controller.GetLastCommittedEntry()->GetUniqueID();
+
+  controller.LoadURL(
+      url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
+  main_test_rfh()->PrepareForCommit();
+  main_test_rfh()->SendNavigate(1, entry_id, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
-  controller.LoadURL(
-      url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
-  EXPECT_EQ(1U, navigation_entry_committed_counter_);
-  navigation_entry_committed_counter_ = 0;
-
   controller.GoBack();
   EXPECT_EQ(0U, notifications.size());
 
   // We should now have a pending navigation to go back.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_TRUE(controller.CanGoForward());
 
   main_test_rfh()->PrepareForCommitWithServerRedirect(url3);
-  main_test_rfh()->SendNavigate(2, url3);
+  main_test_rfh()->SendNavigate(2, entry1_id, true, url3);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The back navigation resulted in a completely new navigation.
   // TODO(darin): perhaps this behavior will be confusing to users?
   EXPECT_EQ(controller.GetEntryCount(), 3);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 2);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 }
 
 // Receives a back message when there is a new pending navigation entry.
 TEST_F(NavigationControllerTest, Back_NewPending) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL kUrl1("http://foo1");
   const GURL kUrl2("http://foo2");
   const GURL kUrl3("http://foo3");
 
   // First navigate two places so we have some back history.
-  main_test_rfh()->SendNavigate(0, kUrl1);
+  main_test_rfh()->SendNavigate(0, 0, true, kUrl1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // controller.LoadURL(kUrl2, ui::PAGE_TRANSITION_TYPED);
-  main_test_rfh()->SendNavigate(1, kUrl2);
+  main_test_rfh()->SendNavigate(1, 0, true, kUrl2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Now start a new pending navigation and go back before it commits.
   controller.LoadURL(
       kUrl3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_EQ(kUrl3, controller.GetPendingEntry()->GetURL());
   controller.GoBack();
 
   // The pending navigation should now be the "back" item and the new one
   // should be gone.
   EXPECT_EQ(0, controller.GetPendingEntryIndex());
   EXPECT_EQ(kUrl1, controller.GetPendingEntry()->GetURL());
 }
 
 // Receives a back message when there is a different renavigation already
 // pending.
 TEST_F(NavigationControllerTest, Back_OtherBackPending) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL kUrl1("http://foo/1");
   const GURL kUrl2("http://foo/2");
   const GURL kUrl3("http://foo/3");
 
   // First navigate three places so we have some back history.
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kUrl1, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kUrl1);
+  main_test_rfh()->SendNavigate(0, 0, true, kUrl1);
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kUrl2, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, kUrl2);
+  main_test_rfh()->SendNavigate(1, 0, true, kUrl2);
   main_test_rfh()->SendRendererInitiatedNavigationRequest(kUrl3, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, kUrl3);
+  main_test_rfh()->SendNavigate(2, 0, true, kUrl3);
 
   // With nothing pending, say we get a renderer back navigation request to the
   // second entry.
   controller.GoToOffset(-1);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, kUrl2);
+  main_test_rfh()->SendNavigate(1, entry_id, false, kUrl2);
 
   // We know all the entries have the same site instance, so we can just grab
   // a random one for looking up other entries.
   SiteInstance* site_instance =
       controller.GetLastCommittedEntry()->site_instance();
 
   // That second URL should be the last committed and it should have gotten the
   // new title.
   EXPECT_EQ(kUrl2, controller.GetEntryWithPageID(site_instance, 1)->GetURL());
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
 
   // Now go forward to the last item again and say it was committed.
   controller.GoForward();
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, kUrl3);
+  main_test_rfh()->SendNavigate(2, entry_id, false, kUrl3);
 
   // Now start going back one to the second page. It will be pending.
   controller.GoBack();
   EXPECT_EQ(1, controller.GetPendingEntryIndex());
   EXPECT_EQ(2, controller.GetLastCommittedEntryIndex());
 
   // Now have the renderer request a navigation back to the first page. This
   // will not match the pending one.
   controller.GoToOffset(-2);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, kUrl1);
+  main_test_rfh()->SendNavigate(0, entry_id, false, kUrl1);
 
   // The committed navigation should clear the pending entry.
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
 
   // But the navigated entry should be the last committed.
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(kUrl1, controller.GetLastCommittedEntry()->GetURL());
 }
 
 // Tests what happens when we navigate forward successfully.
 TEST_F(NavigationControllerTest, Forward) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url1, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
+  NavigationEntry* entry1 = controller.GetLastCommittedEntry();
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url2, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, 0, true, url2);
+  NavigationEntry* entry2 = controller.GetLastCommittedEntry();
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   controller.GoBack();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry1->GetUniqueID(), false, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   controller.GoForward();
 
   // We should now have a pending navigation to go forward.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_TRUE(controller.CanGoToOffset(-1));
   EXPECT_FALSE(controller.CanGoToOffset(-2));  // Cannot go back 2 steps.
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_FALSE(controller.CanGoToOffset(1));
 
   // Timestamp for entry 0 should be on or after that of entry 1
   // (since we went back to it).
   EXPECT_FALSE(controller.GetEntryAtIndex(0)->GetTimestamp().is_null());
   EXPECT_GE(controller.GetEntryAtIndex(0)->GetTimestamp(),
             controller.GetEntryAtIndex(1)->GetTimestamp());
 
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry2->GetUniqueID(), false, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // The forward navigation completed successfully.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
@@ skipping 13 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
   const GURL url3("http://foo3");
 
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url1, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
+  NavigationEntry* entry1 = controller.GetLastCommittedEntry();
   navigation_entry_committed_counter_ = 0;
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url2, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, 0, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
+  NavigationEntry* entry2 = controller.GetLastCommittedEntry();
   navigation_entry_committed_counter_ = 0;
 
   controller.GoBack();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry1->GetUniqueID(), false, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   controller.GoForward();
   EXPECT_EQ(0U, notifications.size());
 
   // Should now have a pending navigation to go forward.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_EQ(controller.GetPendingEntryIndex(), 1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url3);
+  main_test_rfh()->SendNavigate(2, entry2->GetUniqueID(), true, url3);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(notifications.Check1AndReset(NOTIFICATION_NAV_LIST_PRUNED));
 
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 }
 
-// Two consequent navigation for the same URL entered in should be considered
+// Two consecutive navigations for the same URL entered in should be considered
 // as SAME_PAGE navigation even when we are redirected to some other page.
 TEST_F(NavigationControllerTest, Redirect) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");  // Redirection target
 
   // First request
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   EXPECT_EQ(0U, notifications.size());
-  main_test_rfh()->SendNavigate(0, url2);
+
+  FrameHostMsg_DidCommitProvisionalLoad_Params params;
+  params.page_id = 0;
+  params.nav_entry_id = entry_id;
+  params.did_create_new_entry = true;
+  params.url = url2;
+  params.transition = ui::PAGE_TRANSITION_SERVER_REDIRECT;
+  params.redirects.push_back(GURL("http://foo1"));
+  params.redirects.push_back(GURL("http://foo2"));
+  params.should_update_history = false;
+  params.gesture = NavigationGestureAuto;
+  params.is_post = false;
+  params.page_state = PageState::CreateFromURL(url2);
+
+  LoadCommittedDetails details;
+
+  EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
+                                             &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Second request
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
 
-  FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = entry_id;
+  params.did_create_new_entry = false;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_SERVER_REDIRECT;
   params.redirects.push_back(GURL("http://foo1"));
   params.redirects.push_back(GURL("http://foo2"));
   params.should_update_history = false;
   params.gesture = NavigationGestureAuto;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
 
-  LoadCommittedDetails details;
-
   EXPECT_EQ(0U, notifications.size());
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   EXPECT_TRUE(details.type == NAVIGATION_TYPE_SAME_PAGE);
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
@@ skipping 12 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");  // Redirection target
 
   // First request as POST
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   controller.GetVisibleEntry()->SetHasPostData(true);
 
   EXPECT_EQ(0U, notifications.size());
-  main_test_rfh()->SendNavigate(0, url2);
+
+  FrameHostMsg_DidCommitProvisionalLoad_Params params;
+  params.page_id = 0;
+  params.nav_entry_id = entry_id;
+  params.did_create_new_entry = true;
+  params.url = url2;
+  params.transition = ui::PAGE_TRANSITION_SERVER_REDIRECT;
+  params.redirects.push_back(GURL("http://foo1"));
+  params.redirects.push_back(GURL("http://foo2"));
+  params.should_update_history = false;
+  params.gesture = NavigationGestureAuto;
+  params.is_post = true;
+  params.page_state = PageState::CreateFromURL(url2);
+
+  LoadCommittedDetails details;
+
+  EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
+                                             &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Second request
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
 
-  FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = entry_id;
+  params.did_create_new_entry = false;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_SERVER_REDIRECT;
   params.redirects.push_back(GURL("http://foo1"));
   params.redirects.push_back(GURL("http://foo2"));
   params.should_update_history = false;
   params.gesture = NavigationGestureAuto;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
 
-  LoadCommittedDetails details;
-
   EXPECT_EQ(0U, notifications.size());
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   EXPECT_TRUE(details.type == NAVIGATION_TYPE_SAME_PAGE);
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
@@ skipping 11 matching lines @@
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");  // Redirection target
 
   // First request
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
 
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
 
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = entry_id;
+  params.did_create_new_entry = true;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_SERVER_REDIRECT;
   params.redirects.push_back(GURL("http://foo1"));
   params.redirects.push_back(GURL("http://foo2"));
   params.should_update_history = false;
   params.gesture = NavigationGestureAuto;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
 
   LoadCommittedDetails details;
@@ skipping 17 matching lines @@
 }
 
 // Tests navigation via link click within a subframe. A new navigation entry
 // should be created.
 TEST_F(NavigationControllerTest, NewSubframe) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   const GURL url2("http://foo2");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_MANUAL_SUBFRAME;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
 
   LoadCommittedDetails details;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
@@ skipping 15 matching lines @@
 // Auto subframes are ones the page loads automatically like ads. They should
 // not create new navigation entries.
 // TODO(creis): Test cross-site and nested iframes.
 // TODO(creis): Test updating entries for history auto subframe navigations.
 TEST_F(NavigationControllerTest, AutoSubframe) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo/1");
-  main_test_rfh()->SendNavigate(1, url1);
+  main_test_rfh()->SendNavigate(1, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Add a subframe and navigate it.
   main_test_rfh()->OnCreateChildFrame(MSG_ROUTING_NONE, std::string(),
                                       SandboxFlags::NONE);
   RenderFrameHostImpl* subframe =
       contents()->GetFrameTree()->root()->child_at(0)->current_frame_host();
   const GURL url2("http://foo/2");
   {
     FrameHostMsg_DidCommitProvisionalLoad_Params params;
     params.page_id = 1;
+    params.nav_entry_id = 0;
+    params.did_create_new_entry = false;
     params.url = url2;
     params.transition = ui::PAGE_TRANSITION_AUTO_SUBFRAME;
     params.should_update_history = false;
     params.gesture = NavigationGestureUser;
     params.is_post = false;
     params.page_state = PageState::CreateFromURL(url2);
 
     // Navigating should do nothing.
     LoadCommittedDetails details;
     EXPECT_FALSE(controller.RendererDidNavigate(subframe, params, &details));
@@ skipping 66 matching lines @@
 }
 
 // Tests navigation and then going back to a subframe navigation.
 TEST_F(NavigationControllerTest, BackSubframe) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // Main page.
   const GURL url1("http://foo1");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
+  NavigationEntry* entry1 = controller.GetLastCommittedEntry();
   navigation_entry_committed_counter_ = 0;
 
   // First manual subframe navigation.
   const GURL url2("http://foo2");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_MANUAL_SUBFRAME;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
 
   // This should generate a new entry.
   LoadCommittedDetails details;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
+  NavigationEntry* entry2 = controller.GetLastCommittedEntry();
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(2, controller.GetEntryCount());
 
   // Second manual subframe navigation should also make a new entry.
   const GURL url3("http://foo3");
   params.page_id = 2;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url3;
   params.transition = ui::PAGE_TRANSITION_MANUAL_SUBFRAME;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(3, controller.GetEntryCount());
   EXPECT_EQ(2, controller.GetCurrentEntryIndex());
 
   // Go back one.
   controller.GoBack();
   params.page_id = 1;
+  params.nav_entry_id = entry2->GetUniqueID();
+  params.did_create_new_entry = false;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_AUTO_SUBFRAME;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(3, controller.GetEntryCount());
   EXPECT_EQ(1, controller.GetCurrentEntryIndex());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
 
   // Go back one more.
   controller.GoBack();
   params.page_id = 0;
+  params.nav_entry_id = entry1->GetUniqueID();
+  params.did_create_new_entry = false;
   params.url = url1;
   params.transition = ui::PAGE_TRANSITION_AUTO_SUBFRAME;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_EQ(3, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetCurrentEntryIndex());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
 }
 
 TEST_F(NavigationControllerTest, LinkClick) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url1("http://foo1");
   const GURL url2("http://foo2");
 
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, 0, true, url2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
-  // Should not have produced a new session history entry.
+  // Should have produced a new session history entry.
   EXPECT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
 }
 
 TEST_F(NavigationControllerTest, InPage) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // Main page.
   const GURL url1("http://foo");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Ensure main page navigation to same url respects the was_within_same_page
   // hint provided in the params.
   FrameHostMsg_DidCommitProvisionalLoad_Params self_params;
   self_params.page_id = 0;
+  self_params.nav_entry_id = 0;
+  self_params.did_create_new_entry = false;
   self_params.url = url1;
   self_params.transition = ui::PAGE_TRANSITION_LINK;
   self_params.should_update_history = false;
   self_params.gesture = NavigationGestureUser;
   self_params.is_post = false;
   self_params.page_state = PageState::CreateFromURL(url1);
   self_params.was_within_same_page = true;
 
   LoadCommittedDetails details;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), self_params,
                                              &details));
+  NavigationEntry* entry1 = controller.GetLastCommittedEntry();
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(details.is_in_page);
   EXPECT_TRUE(details.did_replace_entry);
   EXPECT_EQ(1, controller.GetEntryCount());
 
   // Fragment navigation to a new page_id.
   const GURL url2("http://foo#a");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
   params.was_within_same_page = true;
 
   // This should generate a new entry.
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
+  NavigationEntry* entry2 = controller.GetLastCommittedEntry();
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(details.is_in_page);
   EXPECT_FALSE(details.did_replace_entry);
   EXPECT_EQ(2, controller.GetEntryCount());
 
   // Go back one.
   FrameHostMsg_DidCommitProvisionalLoad_Params back_params(params);
   controller.GoBack();
   back_params.url = url1;
   back_params.page_id = 0;
+  back_params.nav_entry_id = entry1->GetUniqueID();
+  back_params.did_create_new_entry = false;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), back_params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(details.is_in_page);
   EXPECT_EQ(2, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetCurrentEntryIndex());
   EXPECT_EQ(back_params.url, controller.GetVisibleEntry()->GetURL());
 
-  // Go forward
+  // Go forward.
   FrameHostMsg_DidCommitProvisionalLoad_Params forward_params(params);
   controller.GoForward();
   forward_params.url = url2;
   forward_params.page_id = 1;
+  forward_params.nav_entry_id = entry2->GetUniqueID();
+  forward_params.did_create_new_entry = false;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), forward_params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(details.is_in_page);
   EXPECT_EQ(2, controller.GetEntryCount());
   EXPECT_EQ(1, controller.GetCurrentEntryIndex());
   EXPECT_EQ(forward_params.url,
             controller.GetVisibleEntry()->GetURL());
 
   // Now go back and forward again. This is to work around a bug where we would
   // compare the incoming URL with the last committed entry rather than the
   // one identified by an existing page ID. This would result in the second URL
   // losing the reference fragment when you navigate away from it and then back.
   controller.GoBack();
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), back_params,
                                              &details));
   controller.GoForward();
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), forward_params,
                                              &details));
   EXPECT_EQ(forward_params.url,
             controller.GetVisibleEntry()->GetURL());
 
   // Finally, navigate to an unrelated URL to make sure in_page is not sticky.
   const GURL url3("http://bar");
   params.page_id = 2;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url3;
   navigation_entry_committed_counter_ = 0;
   EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                              &details));
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_FALSE(details.is_in_page);
   EXPECT_EQ(3, controller.GetEntryCount());
   EXPECT_EQ(2, controller.GetCurrentEntryIndex());
 }
 
 TEST_F(NavigationControllerTest, InPage_Replace) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // Main page.
   const GURL url1("http://foo");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // First navigation.
   const GURL url2("http://foo#a");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;  // Same page_id
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = false;
   params.url = url2;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url2);
   params.was_within_same_page = true;
 
   // This should NOT generate a new entry, nor prune the list.
   LoadCommittedDetails details;
@@ skipping 13 matching lines @@
 //     window.location='http://foo3/';
 //   </script>
 TEST_F(NavigationControllerTest, ClientRedirectAfterInPageNavigation) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // Load an initial page.
   {
     const GURL url("http://foo/");
-    main_test_rfh()->SendNavigate(0, url);
+    main_test_rfh()->SendNavigate(0, 0, true, url);
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
   }
 
   // Navigate to a new page.
   {
     const GURL url("http://foo2/");
-    main_test_rfh()->SendNavigate(1, url);
+    main_test_rfh()->SendNavigate(1, 0, true, url);
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
   }
 
   // Navigate within the page.
   {
     const GURL url("http://foo2/#a");
     FrameHostMsg_DidCommitProvisionalLoad_Params params;
     params.page_id = 1;  // Same page_id
+    params.nav_entry_id = 0;
+    params.did_create_new_entry = false;
     params.url = url;
     params.transition = ui::PAGE_TRANSITION_LINK;
     params.redirects.push_back(url);
     params.should_update_history = true;
     params.gesture = NavigationGestureUnknown;
     params.is_post = false;
     params.page_state = PageState::CreateFromURL(url);
     params.was_within_same_page = true;
 
     // This should NOT generate a new entry, nor prune the list.
     LoadCommittedDetails details;
     EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                                &details));
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
     EXPECT_TRUE(details.is_in_page);
     EXPECT_TRUE(details.did_replace_entry);
     EXPECT_EQ(2, controller.GetEntryCount());
   }
 
   // Perform a client redirect to a new page.
   {
     const GURL url("http://foo3/");
     FrameHostMsg_DidCommitProvisionalLoad_Params params;
     params.page_id = 2;  // New page_id
+    params.nav_entry_id = 0;
+    params.did_create_new_entry = true;
     params.url = url;
     params.transition = ui::PAGE_TRANSITION_CLIENT_REDIRECT;
     params.redirects.push_back(GURL("http://foo2/#a"));
     params.redirects.push_back(url);
     params.should_update_history = true;
     params.gesture = NavigationGestureUnknown;
     params.is_post = false;
     params.page_state = PageState::CreateFromURL(url);
 
     // This SHOULD generate a new entry.
     LoadCommittedDetails details;
     EXPECT_TRUE(controller.RendererDidNavigate(main_test_rfh(), params,
                                                &details));
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
     EXPECT_FALSE(details.is_in_page);
     EXPECT_EQ(3, controller.GetEntryCount());
   }
 
   // Verify that BACK brings us back to http://foo2/.
   {
     const GURL url("http://foo2/");
     controller.GoBack();
-    main_test_rfh()->SendNavigate(1, url);
+    int entry_id = controller.GetPendingEntry()->GetUniqueID();
+    main_test_rfh()->SendNavigate(1, entry_id, false, url);
     EXPECT_EQ(1U, navigation_entry_committed_counter_);
     navigation_entry_committed_counter_ = 0;
     EXPECT_EQ(url, controller.GetVisibleEntry()->GetURL());
   }
 }
 
 TEST_F(NavigationControllerTest, PushStateWithoutPreviousEntry)
 {
   ASSERT_FALSE(controller_impl().GetLastCommittedEntry());
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   GURL url("http://foo");
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url;
   params.page_state = PageState::CreateFromURL(url);
   params.was_within_same_page = true;
   contents()->GetMainFrame()->SendNavigateWithParams(&params);
   // We pass if we don't crash.
 }
 
 // NotificationObserver implementation used in verifying we've received the
 // NOTIFICATION_NAV_LIST_PRUNED method.
 class PrunedListener : public NotificationObserver {
@@ skipping 32 matching lines @@
   const int kMaxEntryCount = 5;
 
   NavigationControllerImpl::set_max_entry_count_for_testing(kMaxEntryCount);
 
   int url_index;
   // Load up to the max count, all entries should be there.
   for (url_index = 0; url_index < kMaxEntryCount; url_index++) {
     GURL url(base::StringPrintf("http://www.a.com/%d", url_index));
     controller.LoadURL(
         url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+    int entry_id = controller.GetPendingEntry()->GetUniqueID();
     main_test_rfh()->PrepareForCommit();
-    main_test_rfh()->SendNavigate(url_index, url);
+    main_test_rfh()->SendNavigate(url_index, entry_id, true, url);
   }
 
   EXPECT_EQ(controller.GetEntryCount(), kMaxEntryCount);
 
   // Created a PrunedListener to observe prune notifications.
   PrunedListener listener(&controller);
 
   // Navigate some more.
   GURL url(base::StringPrintf("http://www.a.com/%d", url_index));
   controller.LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(url_index, url);
+  main_test_rfh()->SendNavigate(url_index, entry_id, true, url);
   url_index++;
 
   // We should have got a pruned navigation.
   EXPECT_EQ(1, listener.notification_count_);
   EXPECT_TRUE(listener.details_.from_front);
   EXPECT_EQ(1, listener.details_.count);
 
   // We expect http://www.a.com/0 to be gone.
   EXPECT_EQ(controller.GetEntryCount(), kMaxEntryCount);
   EXPECT_EQ(controller.GetEntryAtIndex(0)->GetURL(),
-            GURL("http:////www.a.com/1"));
+            GURL("http://www.a.com/1"));
 
   // More navigations.
   for (int i = 0; i < 3; i++) {
-    url = GURL(base::StringPrintf("http:////www.a.com/%d", url_index));
+    url = GURL(base::StringPrintf("http://www.a.com/%d", url_index));
     controller.LoadURL(
         url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+    int entry_id = controller.GetPendingEntry()->GetUniqueID();
     main_test_rfh()->PrepareForCommit();
-    main_test_rfh()->SendNavigate(url_index, url);
+    main_test_rfh()->SendNavigate(url_index, entry_id, true, url);
     url_index++;
   }
   EXPECT_EQ(controller.GetEntryCount(), kMaxEntryCount);
   EXPECT_EQ(controller.GetEntryAtIndex(0)->GetURL(),
-            GURL("http:////www.a.com/4"));
+            GURL("http://www.a.com/4"));
 
   NavigationControllerImpl::set_max_entry_count_for_testing(original_count);
 }
 
 // Tests that we can do a restore and navigate to the restored entries and
 // everything is updated properly. This can be tricky since there is no
 // SiteInstance for the entries created initially.
 TEST_F(NavigationControllerTest, RestoreNavigate) {
   // Create a NavigationController with a restored set of tabs.
   GURL url("http://foo");
@@ skipping 33 matching lines @@
   EXPECT_EQ(NavigationEntryImpl::RESTORE_NONE,
             our_controller.GetEntryAtIndex(0)->restore_type());
   EXPECT_TRUE(our_controller.GetEntryAtIndex(0)->site_instance());
 
   // Timestamp should remain the same before the navigation finishes.
   EXPECT_EQ(timestamp, our_controller.GetEntryAtIndex(0)->GetTimestamp());
 
   // Say we navigated to that entry.
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = our_controller.GetPendingEntry()->GetUniqueID();
+  params.did_create_new_entry = false;
   params.url = url;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url);
   LoadCommittedDetails details;
   our_controller.RendererDidNavigate(our_contents->GetMainFrame(), params,
                                      &details);
 
@@ skipping 28 matching lines @@
   entries.push_back(entry);
   scoped_ptr<WebContentsImpl> our_contents(static_cast<WebContentsImpl*>(
       WebContents::Create(WebContents::CreateParams(browser_context()))));
   NavigationControllerImpl& our_controller = our_contents->GetController();
   our_controller.Restore(
       0, NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY, &entries);
   ASSERT_EQ(0u, entries.size());
 
   // Before navigating to the restored entry, it should have a restore_type
   // and no SiteInstance.
+  entry = our_controller.GetEntryAtIndex(0);
   EXPECT_EQ(NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY,
             our_controller.GetEntryAtIndex(0)->restore_type());
   EXPECT_FALSE(our_controller.GetEntryAtIndex(0)->site_instance());
 
   // After navigating, we should have one entry, and it should be "pending".
   // It should now have a SiteInstance and no restore_type.
   our_controller.GoToIndex(0);
   EXPECT_EQ(1, our_controller.GetEntryCount());
   EXPECT_EQ(our_controller.GetEntryAtIndex(0),
             our_controller.GetPendingEntry());
   EXPECT_EQ(0, our_controller.GetEntryAtIndex(0)->GetPageID());
   EXPECT_EQ(NavigationEntryImpl::RESTORE_NONE,
             our_controller.GetEntryAtIndex(0)->restore_type());
   EXPECT_TRUE(our_controller.GetEntryAtIndex(0)->site_instance());
 
   // This pending navigation may have caused a different navigation to fail,
   // which causes the pending entry to be cleared.
   FrameHostMsg_DidFailProvisionalLoadWithError_Params fail_load_params;
   fail_load_params.error_code = net::ERR_ABORTED;
   fail_load_params.error_description = base::string16();
   fail_load_params.url = url;
   fail_load_params.showing_repost_interstitial = false;
   main_test_rfh()->OnMessageReceived(
       FrameHostMsg_DidFailProvisionalLoadWithError(0,  // routing_id
                                                   fail_load_params));
 
   // Now the pending restored entry commits.
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = entry->GetUniqueID();
+  params.did_create_new_entry = false;
   params.url = url;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.should_update_history = false;
   params.gesture = NavigationGestureUser;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url);
   LoadCommittedDetails details;
   our_controller.RendererDidNavigate(our_contents->GetMainFrame(), params,
                                      &details);
 
   // There should be no pending entry and one committed one.
   EXPECT_EQ(1, our_controller.GetEntryCount());
   EXPECT_EQ(0, our_controller.GetLastCommittedEntryIndex());
   EXPECT_FALSE(our_controller.GetPendingEntry());
   EXPECT_EQ(
       url,
       our_controller.GetLastCommittedEntry()->site_instance()->GetSiteURL());
   EXPECT_EQ(NavigationEntryImpl::RESTORE_NONE,
             our_controller.GetEntryAtIndex(0)->restore_type());
 }
 
 // Make sure that the page type and stuff is correct after an interstitial.
 TEST_F(NavigationControllerTest, Interstitial) {
   NavigationControllerImpl& controller = controller_impl();
   // First navigate somewhere normal.
   const GURL url1("http://foo");
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
 
   // Now navigate somewhere with an interstitial.
   const GURL url2("http://bar");
   controller.LoadURL(url2, Referrer(), ui::PAGE_TRANSITION_TYPED,
                      std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   controller.GetPendingEntry()->set_page_type(PAGE_TYPE_INTERSTITIAL);
 
   // At this point the interstitial will be displayed and the load will still
   // be pending. If the user continues, the load will commit.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url2);
 
   // The page should be a normal page again.
   EXPECT_EQ(url2, controller.GetLastCommittedEntry()->GetURL());
   EXPECT_EQ(PAGE_TYPE_NORMAL,
             controller.GetLastCommittedEntry()->GetPageType());
 }
 
 TEST_F(NavigationControllerTest, RemoveEntry) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL url1("http://foo/1");
   const GURL url2("http://foo/2");
   const GURL url3("http://foo/3");
   const GURL url4("http://foo/4");
   const GURL url5("http://foo/5");
   const GURL pending_url("http://foo/pending");
   const GURL default_url("http://foo/default");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url2);
   controller.LoadURL(
       url3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url3);
+  main_test_rfh()->SendNavigate(2, entry_id, true, url3);
   controller.LoadURL(
       url4, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url4);
+  main_test_rfh()->SendNavigate(3, entry_id, true, url4);
   controller.LoadURL(
       url5, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(4, url5);
+  main_test_rfh()->SendNavigate(4, entry_id, true, url5);
 
   // Try to remove the last entry.  Will fail because it is the current entry.
   EXPECT_FALSE(controller.RemoveEntryAtIndex(controller.GetEntryCount() - 1));
   EXPECT_EQ(5, controller.GetEntryCount());
   EXPECT_EQ(4, controller.GetLastCommittedEntryIndex());
 
   // Go back, but don't commit yet. Check that we can't delete the current
   // and pending entries.
   controller.GoBack();
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_FALSE(controller.RemoveEntryAtIndex(controller.GetEntryCount() - 1));
   EXPECT_FALSE(controller.RemoveEntryAtIndex(controller.GetEntryCount() - 2));
 
   // Now commit and delete the last entry.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url4);
+  main_test_rfh()->SendNavigate(3, entry_id, false, url4);
   EXPECT_TRUE(controller.RemoveEntryAtIndex(controller.GetEntryCount() - 1));
   EXPECT_EQ(4, controller.GetEntryCount());
   EXPECT_EQ(3, controller.GetLastCommittedEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
 
   // Remove an entry which is not the last committed one.
   EXPECT_TRUE(controller.RemoveEntryAtIndex(0));
   EXPECT_EQ(3, controller.GetEntryCount());
   EXPECT_EQ(2, controller.GetLastCommittedEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
 
   // Remove the 2 remaining entries.
   controller.RemoveEntryAtIndex(1);
   controller.RemoveEntryAtIndex(0);
 
   // This should leave us with only the last committed entry.
   EXPECT_EQ(1, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
 }
 
 TEST_F(NavigationControllerTest, RemoveEntryWithPending) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL url1("http://foo/1");
   const GURL url2("http://foo/2");
   const GURL url3("http://foo/3");
   const GURL default_url("http://foo/default");
 
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url2);
   controller.LoadURL(
       url3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url3);
+  main_test_rfh()->SendNavigate(2, entry_id, true, url3);
 
   // Go back, but don't commit yet. Check that we can't delete the current
   // and pending entries.
   controller.GoBack();
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_FALSE(controller.RemoveEntryAtIndex(2));
   EXPECT_FALSE(controller.RemoveEntryAtIndex(1));
 
   // Remove the first entry, while there is a pending entry.  This is expected
   // to discard the pending entry.
   EXPECT_TRUE(controller.RemoveEntryAtIndex(0));
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
 
   // We should update the last committed entry index.
   EXPECT_EQ(1, controller.GetLastCommittedEntryIndex());
 
   // Now commit and ensure we land on the right entry.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url2);
+  main_test_rfh()->SendNavigate(1, entry_id, false, url2);
   EXPECT_EQ(2, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
 }
 
 // Tests the transient entry, making sure it goes away with all navigations.
 TEST_F(NavigationControllerTest, TransientEntry) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url0("http://foo/0");
   const GURL url1("http://foo/1");
   const GURL url2("http://foo/2");
   const GURL url3("http://foo/3");
   const GURL url3_ref("http://foo/3#bar");
   const GURL url4("http://foo/4");
   const GURL transient_url("http://foo/transient");
 
   controller.LoadURL(
       url0, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url0);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url0);
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url1);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url1);
 
   notifications.Reset();
 
   // Adding a transient with no pending entry.
   NavigationEntryImpl* transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
 
   // We should not have received any notifications.
   EXPECT_EQ(0U, notifications.size());
 
   // Check our state.
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(controller.GetEntryCount(), 3);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 1);
   EXPECT_EQ(controller.GetPendingEntryIndex(), -1);
   EXPECT_TRUE(controller.GetLastCommittedEntry());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_EQ(contents()->GetMaxPageID(), 1);
 
   // Navigate.
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url2);
+  main_test_rfh()->SendNavigate(2, entry_id, true, url2);
 
   // We should have navigated, transient entry should be gone.
   EXPECT_EQ(url2, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(controller.GetEntryCount(), 3);
 
   // Add a transient again, then navigate with no pending entry this time.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url3, true);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url3);
+  main_test_rfh()->SendNavigate(3, 0, true, url3);
   // Transient entry should be gone.
   EXPECT_EQ(url3, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(controller.GetEntryCount(), 4);
 
   // Initiate a navigation, add a transient then commit navigation.
   controller.LoadURL(
       url4, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(4, url4);
+  main_test_rfh()->SendNavigate(4, entry_id, true, url4);
   EXPECT_EQ(url4, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(controller.GetEntryCount(), 5);
 
   // Add a transient and go back.  This should simply remove the transient.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   EXPECT_TRUE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   controller.GoBack();
   // Transient entry should be gone.
   EXPECT_EQ(url4, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(controller.GetEntryCount(), 5);
 
   // Suppose the page requested a history navigation backward.
   controller.GoToOffset(-1);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url3);
+  main_test_rfh()->SendNavigate(3, entry_id, false, url3);
 
   // Add a transient and go to an entry before the current one.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   controller.GoToIndex(1);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   // The navigation should have been initiated, transient entry should be gone.
   EXPECT_FALSE(controller.GetTransientEntry());
   EXPECT_EQ(url1, controller.GetPendingEntry()->GetURL());
   // Visible entry does not update for history navigations until commit.
   EXPECT_EQ(url3, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url1);
+  main_test_rfh()->SendNavigate(1, entry_id, false, url1);
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
 
   // Add a transient and go to an entry after the current one.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   controller.GoToIndex(3);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   // The navigation should have been initiated, transient entry should be gone.
   // Because of the transient entry that is removed, going to index 3 makes us
   // land on url2 (which is visible after the commit).
   EXPECT_EQ(url2, controller.GetPendingEntry()->GetURL());
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url2);
+  main_test_rfh()->SendNavigate(2, entry_id, false, url2);
   EXPECT_EQ(url2, controller.GetVisibleEntry()->GetURL());
 
   // Add a transient and go forward.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   EXPECT_TRUE(controller.CanGoForward());
   controller.GoForward();
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   // We should have navigated, transient entry should be gone.
   EXPECT_FALSE(controller.GetTransientEntry());
   EXPECT_EQ(url3, controller.GetPendingEntry()->GetURL());
   EXPECT_EQ(url2, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url3);
+  main_test_rfh()->SendNavigate(3, entry_id, false, url3);
   EXPECT_EQ(url3, controller.GetVisibleEntry()->GetURL());
 
   // Add a transient and do an in-page navigation, replacing the current entry.
   transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
 
   main_test_rfh()->SendRendererInitiatedNavigationRequest(url3_ref, false);
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(3, url3_ref);
+  main_test_rfh()->SendNavigate(3, 0, false, url3_ref);
   // Transient entry should be gone.
   EXPECT_FALSE(controller.GetTransientEntry());
   EXPECT_EQ(url3_ref, controller.GetVisibleEntry()->GetURL());
 
   // Ensure the URLs are correct.
   EXPECT_EQ(controller.GetEntryCount(), 5);
   EXPECT_EQ(controller.GetEntryAtIndex(0)->GetURL(), url0);
   EXPECT_EQ(controller.GetEntryAtIndex(1)->GetURL(), url1);
   EXPECT_EQ(controller.GetEntryAtIndex(2)->GetURL(), url2);
   EXPECT_EQ(controller.GetEntryAtIndex(3)->GetURL(), url3_ref);
   EXPECT_EQ(controller.GetEntryAtIndex(4)->GetURL(), url4);
 }
 
 // Test that Reload initiates a new navigation to a transient entry's URL.
 TEST_F(NavigationControllerTest, ReloadTransient) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL url0("http://foo/0");
   const GURL url1("http://foo/1");
   const GURL transient_url("http://foo/transient");
 
   // Load |url0|, and start a pending navigation to |url1|.
   controller.LoadURL(
       url0, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url0);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url0);
   controller.LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
 
   // A transient entry is added, interrupting the navigation.
   NavigationEntryImpl* transient_entry = new NavigationEntryImpl;
   transient_entry->SetURL(transient_url);
   controller.SetTransientEntry(transient_entry);
   EXPECT_TRUE(controller.GetTransientEntry());
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
 
   // The page is reloaded, which should remove the pending entry for |url1| and
   // the transient entry for |transient_url|, and start a navigation to
   // |transient_url|.
   controller.Reload(true);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_FALSE(controller.GetTransientEntry());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(transient_url, controller.GetVisibleEntry()->GetURL());
   ASSERT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetEntryAtIndex(0)->GetURL(), url0);
 
   // Load of |transient_url| completes.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, transient_url);
+  main_test_rfh()->SendNavigate(1, entry_id, true, transient_url);
   ASSERT_EQ(controller.GetEntryCount(), 2);
   EXPECT_EQ(controller.GetEntryAtIndex(0)->GetURL(), url0);
   EXPECT_EQ(controller.GetEntryAtIndex(1)->GetURL(), transient_url);
 }
 
 // Ensure that renderer initiated pending entries get replaced, so that we
 // don't show a stale virtual URL when a navigation commits.
 // See http://crbug.com/266922.
 TEST_F(NavigationControllerTest, RendererInitiatedPendingEntries) {
   NavigationControllerImpl& controller = controller_impl();
@@ skipping 16 matching lines @@
   EXPECT_EQ(url1_fixed, controller.GetPendingEntry()->GetURL());
   EXPECT_EQ(url1, controller.GetPendingEntry()->GetVirtualURL());
   EXPECT_TRUE(controller.GetPendingEntry()->is_renderer_initiated());
 
   // If the user clicks another link, we should replace the pending entry.
   navigator->DidStartProvisionalLoad(main_test_rfh(), url2, false);
   EXPECT_EQ(url2, controller.GetPendingEntry()->GetURL());
   EXPECT_EQ(url2, controller.GetPendingEntry()->GetVirtualURL());
 
   // Once it commits, the URL and virtual URL should reflect the actual page.
-  main_test_rfh()->SendNavigate(0, url2);
+  main_test_rfh()->SendNavigate(0, 0, true, url2);
   EXPECT_EQ(url2, controller.GetLastCommittedEntry()->GetURL());
   EXPECT_EQ(url2, controller.GetLastCommittedEntry()->GetVirtualURL());
 
   // We should not replace the pending entry for an error URL.
   navigator->DidStartProvisionalLoad(main_test_rfh(), url1, false);
   EXPECT_EQ(url1, controller.GetPendingEntry()->GetURL());
   navigator->DidStartProvisionalLoad(main_test_rfh(),
                                      GURL(kUnreachableWebDataURL), false);
   EXPECT_EQ(url1, controller.GetPendingEntry()->GetURL());
 
   // We should remember if the pending entry will replace the current one.
   // http://crbug.com/308444.
   navigator->DidStartProvisionalLoad(main_test_rfh(), url1, false);
   controller.GetPendingEntry()->set_should_replace_entry(true);
   navigator->DidStartProvisionalLoad(main_test_rfh(), url2, false);
   EXPECT_TRUE(controller.GetPendingEntry()->should_replace_entry());
   // TODO(nasko): Until OnNavigate is moved to RenderFrameHost, we need
   // to go through the RenderViewHost. The TestRenderViewHost routes navigations
   // to the main frame.
-  main_test_rfh()->SendNavigate(0, url2);
+  main_test_rfh()->SendNavigate(0, 0, false, url2);
   EXPECT_EQ(url2, controller.GetLastCommittedEntry()->GetURL());
 }
 
 // Tests that the URLs for renderer-initiated navigations are not displayed to
 // the user until the navigation commits, to prevent URL spoof attacks.
 // See http://crbug.com/99016.
 TEST_F(NavigationControllerTest, DontShowRendererURLUntilCommit) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   const GURL url0("http://foo/0");
   const GURL url1("http://foo/1");
 
   // For typed navigations (browser-initiated), both pending and visible entries
   // should update before commit.
   controller.LoadURL(
       url0, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(url0, controller.GetPendingEntry()->GetURL());
   EXPECT_EQ(url0, controller.GetVisibleEntry()->GetURL());
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(0, url0);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url0);
 
   // For link clicks (renderer-initiated navigations), the pending entry should
   // update before commit but the visible should not.
   NavigationController::LoadURLParams load_url_params(url1);
   load_url_params.is_renderer_initiated = true;
   controller.LoadURLWithParams(load_url_params);
+  entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(url0, controller.GetVisibleEntry()->GetURL());
   EXPECT_EQ(url1, controller.GetPendingEntry()->GetURL());
   EXPECT_TRUE(controller.GetPendingEntry()->is_renderer_initiated());
 
   // After commit, both visible should be updated, there should be no pending
   // entry, and we should no longer treat the entry as renderer-initiated.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(1, url1);
+  main_test_rfh()->SendNavigate(1, entry_id, true, url1);
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_FALSE(controller.GetLastCommittedEntry()->is_renderer_initiated());
 
   notifications.Reset();
 }
 
 // Tests that the URLs for renderer-initiated navigations in new tabs are
 // displayed to the user before commit, as long as the initial about:blank
 // page has not been modified.  If so, we must revert to showing about:blank.
@@ skipping 137 matching lines @@
   const GURL url1("http://foo/eh");
   const GURL url2("http://foo/bee");
 
   // For renderer-initiated navigations in new tabs (with no committed entries),
   // we show the pending entry's URL as long as the about:blank page is not
   // modified.
   NavigationController::LoadURLParams load_url_params(url1);
   load_url_params.transition_type = ui::PAGE_TRANSITION_LINK;
   load_url_params.is_renderer_initiated = true;
   controller.LoadURLWithParams(load_url_params);
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
   EXPECT_TRUE(controller.GetPendingEntry()->is_renderer_initiated());
   EXPECT_TRUE(controller.IsInitialNavigation());
   EXPECT_FALSE(contents()->HasAccessedInitialDocument());
 
   // Simulate a commit and then starting a new pending navigation.
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, entry_id, true, url1);
   NavigationController::LoadURLParams load_url2_params(url2);
   load_url2_params.transition_type = ui::PAGE_TRANSITION_LINK;
   load_url2_params.is_renderer_initiated = true;
   controller.LoadURLWithParams(load_url2_params);
 
   // We should not consider this an initial navigation, and thus should
   // not show the pending URL.
   EXPECT_FALSE(contents()->HasAccessedInitialDocument());
   EXPECT_FALSE(controller.IsInitialNavigation());
   EXPECT_TRUE(controller.GetVisibleEntry());
   EXPECT_EQ(url1, controller.GetVisibleEntry()->GetURL());
 
   notifications.Reset();
 }
 
 // Tests that IsInPageNavigation returns appropriate results.  Prevents
 // regression for bug 1126349.
 TEST_F(NavigationControllerTest, IsInPageNavigation) {
   NavigationControllerImpl& controller = controller_impl();
   const GURL url("http://www.google.com/home.html");
 
   // If the renderer claims it performed an in-page navigation from
   // about:blank, trust the renderer.
   // This can happen when an iframe is created and populated via
   // document.write(), then tries to perform a fragment navigation.
   // TODO(japhet): We should only trust the renderer if the about:blank
   // was the first document in the given frame, but we don't have enough
   // information to identify that case currently.
   const GURL blank_url(url::kAboutBlankURL);
-  main_test_rfh()->SendNavigate(0, blank_url);
-  EXPECT_TRUE(controller.IsURLInPageNavigation(url, true,
-      main_test_rfh()));
+  main_test_rfh()->SendNavigate(0, 0, true, blank_url);
+  EXPECT_TRUE(controller.IsURLInPageNavigation(url, true, main_test_rfh()));
 
   // Navigate to URL with no refs.
-  main_test_rfh()->SendNavigate(0, url);
+  main_test_rfh()->SendNavigate(0, 0, false, url);
 
   // Reloading the page is not an in-page navigation.
-  EXPECT_FALSE(controller.IsURLInPageNavigation(url, false,
-      main_test_rfh()));
+  EXPECT_FALSE(controller.IsURLInPageNavigation(url, false, main_test_rfh()));
   const GURL other_url("http://www.google.com/add.html");
   EXPECT_FALSE(controller.IsURLInPageNavigation(other_url, false,
       main_test_rfh()));
   const GURL url_with_ref("http://www.google.com/home.html#my_ref");
   EXPECT_TRUE(controller.IsURLInPageNavigation(url_with_ref, true,
       main_test_rfh()));
 
   // Navigate to URL with refs.
-  main_test_rfh()->SendNavigate(1, url_with_ref);
+  main_test_rfh()->SendNavigate(1, 0, true, url_with_ref);
 
   // Reloading the page is not an in-page navigation.
   EXPECT_FALSE(controller.IsURLInPageNavigation(url_with_ref, false,
       main_test_rfh()));
   EXPECT_FALSE(controller.IsURLInPageNavigation(url, false,
       main_test_rfh()));
   EXPECT_FALSE(controller.IsURLInPageNavigation(other_url, false,
       main_test_rfh()));
   const GURL other_url_with_ref("http://www.google.com/home.html#my_other_ref");
   EXPECT_TRUE(controller.IsURLInPageNavigation(other_url_with_ref, true,
@@ skipping 18 matching lines @@
   const GURL different_origin_url("http://www.example.com");
   MockRenderProcessHost* rph =
       static_cast<MockRenderProcessHost*>(main_test_rfh()->GetProcess());
   WebPreferences prefs = test_rvh()->GetWebkitPreferences();
   prefs.allow_universal_access_from_file_urls = true;
   test_rvh()->UpdateWebkitPreferences(prefs);
   prefs = test_rvh()->GetWebkitPreferences();
   EXPECT_TRUE(prefs.allow_universal_access_from_file_urls);
   // Allow in page navigation if existing URL is file scheme.
   const GURL file_url("file:///foo/index.html");
-  main_test_rfh()->SendNavigate(0, file_url);
+  main_test_rfh()->SendNavigate(0, 0, false, file_url);
   EXPECT_EQ(0, rph->bad_msg_count());
   EXPECT_TRUE(controller.IsURLInPageNavigation(different_origin_url, true,
       main_test_rfh()));
   EXPECT_EQ(0, rph->bad_msg_count());
   // Don't honor allow_universal_access_from_file_urls if existing URL is
   // not file scheme.
-  main_test_rfh()->SendNavigate(0, url);
+  main_test_rfh()->SendNavigate(0, 0, false, url);
   EXPECT_FALSE(controller.IsURLInPageNavigation(different_origin_url, true,
       main_test_rfh()));
   EXPECT_EQ(1, rph->bad_msg_count());
 
   // Remove allow_universal_access_from_file_urls flag.
   prefs.allow_universal_access_from_file_urls = false;
   test_rvh()->UpdateWebkitPreferences(prefs);
   prefs = test_rvh()->GetWebkitPreferences();
   EXPECT_FALSE(prefs.allow_universal_access_from_file_urls);
 
   // Don't believe the renderer if it claims a cross-origin navigation is
   // in-page.
   EXPECT_EQ(1, rph->bad_msg_count());
   EXPECT_FALSE(controller.IsURLInPageNavigation(different_origin_url, true,
       main_test_rfh()));
   EXPECT_EQ(2, rph->bad_msg_count());
 }
 
 // Some pages can have subframes with the same base URL (minus the reference) as
 // the main page. Even though this is hard, it can happen, and we don't want
 // these subframe navigations to affect the toplevel document. They should
 // instead be ignored.  http://crbug.com/5585
 TEST_F(NavigationControllerTest, SameSubframe) {
   NavigationControllerImpl& controller = controller_impl();
   // Navigate the main frame.
   const GURL url("http://www.google.com/");
-  main_test_rfh()->SendNavigate(0, url);
+  main_test_rfh()->SendNavigate(0, 0, true, url);
 
   // We should be at the first navigation entry.
   EXPECT_EQ(controller.GetEntryCount(), 1);
   EXPECT_EQ(controller.GetLastCommittedEntryIndex(), 0);
 
   // Navigate a subframe that would normally count as in-page.
   const GURL subframe("http://www.google.com/#");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 0;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = false;
   params.url = subframe;
   params.transition = ui::PAGE_TRANSITION_AUTO_SUBFRAME;
   params.should_update_history = false;
   params.gesture = NavigationGestureAuto;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(subframe);
   LoadCommittedDetails details;
   EXPECT_FALSE(controller.RendererDidNavigate(main_test_rfh(), params,
                                               &details));
 
@@ skipping 125 matching lines @@
   // Now start a pending load to a totally different page, but don't commit it.
   const GURL url2("http://bar/");
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
 
   // Send a subframe update from the first page, as if one had just
   // automatically loaded. Auto subframes don't increment the page ID.
   const GURL url1_sub("http://foo/subframe");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = controller.GetLastCommittedEntry()->GetPageID();
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = false;
   params.url = url1_sub;
   params.transition = ui::PAGE_TRANSITION_AUTO_SUBFRAME;
   params.should_update_history = false;
   params.gesture = NavigationGestureAuto;
   params.is_post = false;
   params.page_state = PageState::CreateFromURL(url1_sub);
   LoadCommittedDetails details;
 
   // This should return false meaning that nothing was actually updated.
   EXPECT_FALSE(controller.RendererDidNavigate(main_test_rfh(), params,
@@ skipping 277 matching lines @@
 
   NavigateAndCommit(url1);
 
   scoped_ptr<TestWebContents> other_contents(
       static_cast<TestWebContents*>(CreateTestWebContents()));
   NavigationControllerImpl& other_controller = other_contents->GetController();
   other_contents->NavigateAndCommit(url2a);
   // Simulate a client redirect, which has the same page ID as entry 2a.
   other_controller.LoadURL(
       url2b, Referrer(), ui::PAGE_TRANSITION_LINK, std::string());
-  other_controller.GetPendingEntry()->SetPageID(
-      other_controller.GetLastCommittedEntry()->GetPageID());
+  NavigationEntry* entry = other_controller.GetPendingEntry();
+  entry->SetPageID(other_controller.GetLastCommittedEntry()->GetPageID());
 
   other_contents->ExpectSetHistoryOffsetAndLength(1, 2);
   other_controller.CopyStateFromAndPrune(&controller, false);
 
   // other_controller should now contain url1, url2a, and a pending entry
   // for url2b.
 
   ASSERT_EQ(2, other_controller.GetEntryCount());
   EXPECT_EQ(1, other_controller.GetCurrentEntryIndex());
 
   EXPECT_EQ(url1, other_controller.GetEntryAtIndex(0)->GetURL());
   EXPECT_EQ(url2a, other_controller.GetEntryAtIndex(1)->GetURL());
 
   // And there should be a pending entry for url4.
   ASSERT_TRUE(other_controller.GetPendingEntry());
   EXPECT_EQ(url2b, other_controller.GetPendingEntry()->GetURL());
 
   // Let the pending entry commit.
-  other_contents->CommitPendingNavigation();
+  other_contents->TestDidNavigate(other_contents->GetMainFrame(),
+                                  entry->GetPageID(), 0, false, url2b,
+                                  ui::PAGE_TRANSITION_LINK);
 
   // The max page ID map should be copied over and updated with the max page ID
   // from the current tab.
   SiteInstance* instance1 =
       other_controller.GetEntryAtIndex(1)->site_instance();
   EXPECT_EQ(0, other_contents->GetMaxPageIDForSiteInstance(instance1));
 }
 
 // Test CopyStateFromAndPrune with 2 urls, a back navigation pending in the
 // source, and 1 entry in the target. The back pending entry should be ignored.
@@ skipping 340 matching lines @@
   const GURL url1("http://foo/1");
   const GURL url2("http://foo/2");
   const GURL url3("http://foo/3");
 
   NavigateAndCommit(url1);
   NavigateAndCommit(url2);
 
   // Create a pending entry that is not in the entry list.
   controller.LoadURL(
       url3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  int entry_id = controller.GetPendingEntry()->GetUniqueID();
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(2, controller.GetEntryCount());
 
   contents()->ExpectSetHistoryOffsetAndLength(0, 1);
   controller.PruneAllButLastCommitted();
 
   // We should only have the last committed and pending entries at this point,
   // and the pending entry should still not be in the entry list.
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(url2, controller.GetEntryAtIndex(0)->GetURL());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_TRUE(controller.GetPendingEntry());
   EXPECT_EQ(1, controller.GetEntryCount());
 
   // Try to commit the pending entry.
   main_test_rfh()->PrepareForCommit();
-  main_test_rfh()->SendNavigate(2, url3);
+  main_test_rfh()->SendNavigate(2, entry_id, true, url3);
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_FALSE(controller.GetPendingEntry());
   EXPECT_EQ(2, controller.GetEntryCount());
   EXPECT_EQ(url3, controller.GetEntryAtIndex(1)->GetURL());
 }
 
 // Test to ensure that when we do a history navigation back to the current
 // committed page (e.g., going forward to a slow-loading page, then pressing
 // the back button), we just stop the navigation to prevent the throbber from
 // running continuously. Otherwise, the RenderViewHost forces the throbber to
@@ skipping 21 matching lines @@
 TEST_F(NavigationControllerTest, IsInitialNavigation) {
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
   // Initial state.
   EXPECT_TRUE(controller.IsInitialNavigation());
 
   // After commit, it stays false.
   const GURL url1("http://foo1");
-  main_test_rfh()->SendNavigate(0, url1);
+  main_test_rfh()->SendNavigate(0, 0, true, url1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   EXPECT_FALSE(controller.IsInitialNavigation());
 
   // After starting a new navigation, it stays false.
   const GURL url2("http://foo2");
   controller.LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
 }
 
 // Check that the favicon is not reused across a client redirect.
 // (crbug.com/28515)
 TEST_F(NavigationControllerTest, ClearFaviconOnRedirect) {
   const GURL kPageWithFavicon("http://withfavicon.html");
   const GURL kPageWithoutFavicon("http://withoutfavicon.html");
   const GURL kIconURL("http://withfavicon.ico");
   const gfx::Image kDefaultFavicon = FaviconStatus().image;
 
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
-  main_test_rfh()->SendNavigate(0, kPageWithFavicon);
+  main_test_rfh()->SendNavigate(0, 0, true, kPageWithFavicon);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   NavigationEntry* entry = controller.GetLastCommittedEntry();
   EXPECT_TRUE(entry);
   EXPECT_EQ(kPageWithFavicon, entry->GetURL());
 
   // Simulate Chromium having set the favicon for |kPageWithFavicon|.
   content::FaviconStatus& favicon_status = entry->GetFavicon();
   favicon_status.image = CreateImage(SK_ColorWHITE);
   favicon_status.url = kIconURL;
   favicon_status.valid = true;
   EXPECT_FALSE(DoImagesMatch(kDefaultFavicon, entry->GetFavicon().image));
 
   main_test_rfh()->SendNavigateWithTransition(
-      0,  // same page ID.
-      kPageWithoutFavicon,
-      ui::PAGE_TRANSITION_CLIENT_REDIRECT);
+      0,      // same page ID.
+      0,      // nav_entry_id
+      false,  // no new entry
+      kPageWithoutFavicon, ui::PAGE_TRANSITION_CLIENT_REDIRECT);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   entry = controller.GetLastCommittedEntry();
   EXPECT_TRUE(entry);
   EXPECT_EQ(kPageWithoutFavicon, entry->GetURL());
 
   EXPECT_TRUE(DoImagesMatch(kDefaultFavicon, entry->GetFavicon().image));
 }
 
 // Check that the favicon is not cleared for NavigationEntries which were
 // previously navigated to.
 TEST_F(NavigationControllerTest, BackNavigationDoesNotClearFavicon) {
   const GURL kUrl1("http://www.a.com/1");
   const GURL kUrl2("http://www.a.com/2");
   const GURL kIconURL("http://www.a.com/1/favicon.ico");
 
   NavigationControllerImpl& controller = controller_impl();
   TestNotificationTracker notifications;
   RegisterForAllNavNotifications(&notifications, &controller);
 
-  main_test_rfh()->SendNavigate(0, kUrl1);
+  main_test_rfh()->SendNavigate(0, 0, true, kUrl1);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Simulate Chromium having set the favicon for |kUrl1|.
   gfx::Image favicon_image = CreateImage(SK_ColorWHITE);
   content::NavigationEntry* entry = controller.GetLastCommittedEntry();
   EXPECT_TRUE(entry);
   content::FaviconStatus& favicon_status = entry->GetFavicon();
   favicon_status.image = favicon_image;
   favicon_status.url = kIconURL;
   favicon_status.valid = true;
 
   // Navigate to another page and go back to the original page.
-  main_test_rfh()->SendNavigate(1, kUrl2);
+  main_test_rfh()->SendNavigate(1, 0, true, kUrl2);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
   main_test_rfh()->SendNavigateWithTransition(
-      0,
-      kUrl1,
+      0, controller.GetEntryAtIndex(0)->GetUniqueID(), false, kUrl1,
       ui::PAGE_TRANSITION_FORWARD_BACK);
   EXPECT_EQ(1U, navigation_entry_committed_counter_);
   navigation_entry_committed_counter_ = 0;
 
   // Verify that the favicon for the page at |kUrl1| was not cleared.
   entry = controller.GetEntryAtIndex(0);
   EXPECT_TRUE(entry);
   EXPECT_EQ(kUrl1, entry->GetURL());
   EXPECT_TRUE(DoImagesMatch(favicon_image, entry->GetFavicon().image));
 }
@@ skipping 80 matching lines @@
   EXPECT_EQ(0, screenshot_manager->GetScreenshotCount());
   for (int i = 0; i < controller.GetEntryCount(); ++i) {
     entry = controller.GetEntryAtIndex(i);
     EXPECT_FALSE(entry->screenshot().get()) << "Screenshot " << i
                                             << " not cleared";
   }
 }
 
 TEST_F(NavigationControllerTest, PushStateUpdatesTitleAndFavicon) {
   // Navigate.
-  contents()->GetMainFrame()->SendNavigate(1, GURL("http://foo"));
+  contents()->GetMainFrame()->SendNavigate(1, 0, true, GURL("http://foo"));
 
   // Set title and favicon.
   base::string16 title(base::ASCIIToUTF16("Title"));
   FaviconStatus favicon;
   favicon.valid = true;
   favicon.url = GURL("http://foo/favicon.ico");
   controller().GetLastCommittedEntry()->SetTitle(title);
   controller().GetLastCommittedEntry()->GetFavicon() = favicon;
 
   // history.pushState() is called.
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   GURL url("http://foo#foo");
   params.page_id = 2;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url;
   params.page_state = PageState::CreateFromURL(url);
   params.was_within_same_page = true;
   contents()->GetMainFrame()->SendNavigateWithParams(&params);
 
   // The title should immediately be visible on the new NavigationEntry.
   base::string16 new_title =
       controller().GetLastCommittedEntry()->GetTitleForDisplay(std::string());
   EXPECT_EQ(title, new_title);
   FaviconStatus new_favicon =
@@ skipping 56 matching lines @@
 
 TEST_F(NavigationControllerTest, PostThenReplaceStateThenReload) {
   scoped_ptr<TestWebContentsDelegate> delegate(new TestWebContentsDelegate());
   EXPECT_FALSE(contents()->GetDelegate());
   contents()->SetDelegate(delegate.get());
 
   // Submit a form.
   GURL url("http://foo");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url;
   params.transition = ui::PAGE_TRANSITION_FORM_SUBMIT;
   params.gesture = NavigationGestureUser;
   params.page_state = PageState::CreateFromURL(url);
   params.was_within_same_page = false;
   params.is_post = true;
   params.post_id = 2;
   contents()->GetMainFrame()->SendNavigateWithParams(&params);
 
   // history.replaceState() is called.
   GURL replace_url("http://foo#foo");
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = false;
   params.url = replace_url;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.gesture = NavigationGestureUser;
   params.page_state = PageState::CreateFromURL(replace_url);
   params.was_within_same_page = true;
   params.is_post = false;
   params.post_id = -1;
   contents()->GetMainFrame()->SendNavigateWithParams(&params);
 
   // Now reload. replaceState overrides the POST, so we should not show a
   // repost warning dialog.
   controller_impl().Reload(true);
   EXPECT_EQ(0, delegate->repost_form_warning_count());
 }
 
 TEST_F(NavigationControllerTest, UnreachableURLGivesErrorPage) {
   GURL url("http://foo");
   FrameHostMsg_DidCommitProvisionalLoad_Params params;
   params.page_id = 1;
+  params.nav_entry_id = 0;
+  params.did_create_new_entry = true;
   params.url = url;
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.gesture = NavigationGestureUser;
   params.page_state = PageState::CreateFromURL(url);
   params.was_within_same_page = false;
   params.is_post = true;
   params.post_id = 2;
   params.url_is_unreachable = true;
-  // Navigate to new page
+
+  // Navigate to new page.
   {
     LoadCommittedDetails details;
     controller_impl().RendererDidNavigate(main_test_rfh(), params, &details);
     EXPECT_EQ(PAGE_TYPE_ERROR,
               controller_impl().GetLastCommittedEntry()->GetPageType());
     EXPECT_EQ(NAVIGATION_TYPE_NEW_PAGE, details.type);
   }
 
   // Navigate to existing page.
   {
+    params.did_create_new_entry = false;
     LoadCommittedDetails details;
     controller_impl().RendererDidNavigate(main_test_rfh(), params, &details);
     EXPECT_EQ(PAGE_TYPE_ERROR,
               controller_impl().GetLastCommittedEntry()->GetPageType());
     EXPECT_EQ(NAVIGATION_TYPE_EXISTING_PAGE, details.type);
   }
 
   // Navigate to same page.
   // Note: The call to LoadURL() creates a pending entry in order to trigger the
   // same-page transition.
   controller_impl().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  params.nav_entry_id = controller_impl().GetPendingEntry()->GetUniqueID();
   params.transition = ui::PAGE_TRANSITION_TYPED;
   {
     LoadCommittedDetails details;
     controller_impl().RendererDidNavigate(main_test_rfh(), params, &details);
     EXPECT_EQ(PAGE_TYPE_ERROR,
               controller_impl().GetLastCommittedEntry()->GetPageType());
     EXPECT_EQ(NAVIGATION_TYPE_SAME_PAGE, details.type);
   }
 
   // Navigate in page.
   params.url = GURL("http://foo#foo");
   params.transition = ui::PAGE_TRANSITION_LINK;
   params.was_within_same_page = true;
   {
     LoadCommittedDetails details;
     controller_impl().RendererDidNavigate(main_test_rfh(), params, &details);
     EXPECT_EQ(PAGE_TYPE_ERROR,
               controller_impl().GetLastCommittedEntry()->GetPageType());
     EXPECT_EQ(NAVIGATION_TYPE_IN_PAGE, details.type);
   }
 }
 
 }  // namespace content