Handle interface to prerenders.

chrome/browser/prerender/prerender_unittest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "chrome/browser/prerender/prerender_contents.h"
+#include "chrome/browser/prerender/prerender_handle.h"
 #include "chrome/browser/prerender/prerender_link_manager.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_origin.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/test/test_browser_thread.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/size.h"
 
 using content::BrowserThread;
 using content::Referrer;
 
 namespace prerender {
 
+class UnitTestPrerenderManager;
+
 namespace {
 
 class DummyPrerenderContents : public PrerenderContents {
  public:
-  DummyPrerenderContents(PrerenderManager* prerender_manager,
+  DummyPrerenderContents(UnitTestPrerenderManager* test_prerender_manager,
                          PrerenderTracker* prerender_tracker,
                          const GURL& url,
                          Origin origin,
-                         FinalStatus expected_final_status)
-      : PrerenderContents(prerender_manager, prerender_tracker,
-                          NULL, url, Referrer(), origin,
-                          PrerenderManager::kNoExperiment),
-        expected_final_status_(expected_final_status) {
-  }
+                         FinalStatus expected_final_status);
 
   virtual ~DummyPrerenderContents() {
     EXPECT_EQ(expected_final_status_, final_status());
   }
 
   virtual void StartPrerendering(
       int ALLOW_UNUSED creator_child_id,
       const gfx::Size& ALLOW_UNUSED size,
       content::SessionStorageNamespace* ALLOW_UNUSED session_storage_namespace,
-      bool is_control_group) OVERRIDE {
-    // In the base PrerenderContents implementation, StartPrerendering will
-    // be called even when the PrerenderManager is part of the control group,
-    // but it will early exit before actually creating a new RenderView if
-    // |is_control_group| is true;
-    if (!is_control_group)
-      prerendering_has_started_ = true;
-  }
+      bool is_control_group) OVERRIDE;
 
   virtual bool GetChildId(int* child_id) const OVERRIDE {
     *child_id = 0;
     return true;
   }
 
   virtual bool GetRouteId(int* route_id) const OVERRIDE {
     *route_id = 0;
     return true;
   }
 
   FinalStatus expected_final_status() const { return expected_final_status_; }
 
   bool prerendering_has_been_cancelled() const {
     return PrerenderContents::prerendering_has_been_cancelled();
   }
 
  private:
+  UnitTestPrerenderManager* test_prerender_manager_;
   FinalStatus expected_final_status_;
 };
 
-class TestPrerenderManager : public PrerenderManager {
+}  // namespace
+
+class UnitTestPrerenderManager : public PrerenderManager {
  public:
-  explicit TestPrerenderManager(PrerenderTracker* prerender_tracker)
+  using PrerenderManager::kNavigationRecordWindowMs;
+  using PrerenderManager::GetMaxAge;
+
+  explicit UnitTestPrerenderManager(PrerenderTracker* prerender_tracker)
       : PrerenderManager(&profile_, prerender_tracker),
         time_(base::Time::Now()),
         time_ticks_(base::TimeTicks::Now()),
         next_prerender_contents_(NULL),
         prerender_tracker_(prerender_tracker) {
     set_rate_limit_enabled(false);
   }
 
-  virtual ~TestPrerenderManager() {
+  virtual ~UnitTestPrerenderManager() {
     if (next_prerender_contents()) {
       next_prerender_contents_.release()->Destroy(
           FINAL_STATUS_MANAGER_SHUTDOWN);
     }
-    // Set the final status for all PrerenderContents with an expected final
-    // status of FINAL_STATUS_USED.  These values are normally set when the
-    // prerendered RVH is swapped into a tab, which doesn't happen in these
-    // unit tests.
-    for (ScopedVector<PrerenderContents>::iterator it =
-             used_prerender_contents_.begin();
-         it != used_prerender_contents_.end(); ++it) {
-      (*it)->set_final_status(FINAL_STATUS_USED);
-    }
     DoShutdown();
   }
 
+  PrerenderContents* FindEntry(const GURL& url) {
+    DeleteOldEntries();
+    DeletePendingDeleteEntries();
+    if (PrerenderData* data = FindPrerenderData(url, NULL))
+      return data->contents;
+    return NULL;
+  }
+
+  PrerenderContents* FindAndUseEntry(const GURL& url) {
+    PrerenderData* prerender_data = FindPrerenderData(url, NULL);
+    if (!prerender_data)
+      return NULL;
+    PrerenderContents* prerender_contents = prerender_data->contents;
+    prerender_contents->set_final_status(FINAL_STATUS_USED);
+    std::list<PrerenderData>::iterator to_erase =
+        FindIteratorForPrerenderContents(prerender_contents);
+    DCHECK(to_erase != active_prerender_list_.end());
+    InvalidatePrerenderHandlesForPrerenderData(*to_erase);
+    active_prerender_list_.erase(to_erase);
+    prerender_contents->StartPendingPrerenders();
+    return prerender_contents;
+  }
+
   void AdvanceTime(base::TimeDelta delta) {
     time_ += delta;
   }
 
   void AdvanceTimeTicks(base::TimeDelta delta) {
     time_ticks_ += delta;
   }
 
   DummyPrerenderContents* CreateNextPrerenderContents(
       const GURL& url,
@@ skipping 35 matching lines @@
   }
 
   void set_rate_limit_enabled(bool enabled) {
     mutable_config().rate_limit_enabled = enabled;
   }
 
   PrerenderContents* next_prerender_contents() {
     return next_prerender_contents_.get();
   }
 
+  // from PrerenderManager
+  virtual base::Time GetCurrentTime() const OVERRIDE {
+    return time_;
+  }
+
+  virtual base::TimeTicks GetCurrentTimeTicks() const OVERRIDE {
+    return time_ticks_;
+  }
+
  private:
   void SetNextPrerenderContents(DummyPrerenderContents* prerender_contents) {
     DCHECK(!next_prerender_contents_.get());
     next_prerender_contents_.reset(prerender_contents);
     if (prerender_contents->expected_final_status() == FINAL_STATUS_USED)
       used_prerender_contents_.push_back(prerender_contents);
   }
 
-  virtual base::Time GetCurrentTime() const OVERRIDE {
-    return time_;
-  }
-
-  virtual base::TimeTicks GetCurrentTimeTicks() const OVERRIDE {
-    return time_ticks_;
-  }
 
   virtual PrerenderContents* CreatePrerenderContents(
       const GURL& url,
       const Referrer& referrer,
       Origin origin,
       uint8 experiment_id) OVERRIDE {
     DCHECK(next_prerender_contents_.get());
-    DCHECK_EQ(next_prerender_contents_->prerender_url(), url);
-    DCHECK_EQ(next_prerender_contents_->origin(), origin);
+    EXPECT_TRUE(next_prerender_contents_->prerender_url() == url);
+    EXPECT_TRUE(next_prerender_contents_->origin() == origin);

[mmenke, 2012/07/10 18:01:13]

EXPECT_EQ?

[gavinp, 2012/07/11 17:04:00]

Done.

     return next_prerender_contents_.release();
   }
 
   base::Time time_;
   base::TimeTicks time_ticks_;
   scoped_ptr<PrerenderContents> next_prerender_contents_;
   // PrerenderContents with an |expected_final_status| of FINAL_STATUS_USED,
   // tracked so they will be automatically deleted.
   ScopedVector<PrerenderContents> used_prerender_contents_;
 
   PrerenderTracker* prerender_tracker_;
 
   TestingProfile profile_;
 };
 
 class RestorePrerenderMode {
  public:
   RestorePrerenderMode() : prev_mode_(PrerenderManager::GetMode()) {
   }
 
   ~RestorePrerenderMode() { PrerenderManager::SetMode(prev_mode_); }
  private:
   PrerenderManager::PrerenderManagerMode prev_mode_;
 };
 
-}  // namespace
+DummyPrerenderContents::DummyPrerenderContents(
+    UnitTestPrerenderManager* test_prerender_manager,
+    PrerenderTracker* prerender_tracker,
+    const GURL& url,
+    Origin origin,
+    FinalStatus expected_final_status)
+    : PrerenderContents(test_prerender_manager, prerender_tracker,
+                        NULL, url, Referrer(), origin,
+                        PrerenderManager::kNoExperiment),
+      test_prerender_manager_(test_prerender_manager),
+      expected_final_status_(expected_final_status) {
+}
+
+void DummyPrerenderContents::StartPrerendering(
+    int ALLOW_UNUSED creator_child_id,
+    const gfx::Size& ALLOW_UNUSED size,
+    content::SessionStorageNamespace* ALLOW_UNUSED session_storage_namespace,
+    bool is_control_group) {
+  // In the base PrerenderContents implementation, StartPrerendering will
+  // be called even when the PrerenderManager is part of the control group,
+  // but it will early exit before actually creating a new RenderView if
+  // |is_control_group| is true;
+  if (!is_control_group)
+    prerendering_has_started_ = true;
+  load_start_time_ = test_prerender_manager_->GetCurrentTimeTicks();
+}
 
 class PrerenderTest : public testing::Test {
  public:
   static const int kDefaultChildId = -1;
   static const int kDefaultRenderViewRouteId = -1;
 
   PrerenderTest() : ui_thread_(BrowserThread::UI, &message_loop_),
                     prerender_manager_(
-                        new TestPrerenderManager(prerender_tracker())),
+                        new UnitTestPrerenderManager(prerender_tracker())),
                     prerender_link_manager_(
                         new PrerenderLinkManager(prerender_manager_.get())),
                     last_prerender_id_(0) {
     // Enable omnibox prerendering.
     CommandLine::ForCurrentProcess()->AppendSwitchASCII(
         switches::kPrerenderFromOmnibox,
         switches::kPrerenderFromOmniboxSwitchValueEnabled);
   }
 
-  TestPrerenderManager* prerender_manager() {
+  UnitTestPrerenderManager* prerender_manager() {
     return prerender_manager_.get();
   }
 
   PrerenderLinkManager* prerender_link_manager() {
     return prerender_link_manager_.get();
   }
 
   bool IsEmptyPrerenderLinkManager() {
     return prerender_link_manager_->IsEmpty();
   }
@@ skipping 15 matching lines @@
   }
 
  private:
   PrerenderTracker* prerender_tracker() {
     return g_browser_process->prerender_tracker();
   }
 
   // Needed to pass PrerenderManager's DCHECKs.
   MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;
-  scoped_ptr<TestPrerenderManager> prerender_manager_;
+  scoped_ptr<UnitTestPrerenderManager> prerender_manager_;
   scoped_ptr<PrerenderLinkManager> prerender_link_manager_;
   int last_prerender_id_;
 };
 
-TEST_F(PrerenderTest, EmptyTest) {
-  EXPECT_FALSE(prerender_manager()->MaybeUsePrerenderedPage(
-      NULL,
-      GURL("http://www.google.com/")));
-}
-
 TEST_F(PrerenderTest, FoundTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Make sure that if queue a request, and a second prerender request for the
 // same URL comes in, that we drop the second request and keep the first one.
 TEST_F(PrerenderTest, DropSecondRequestTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_USED);
   DummyPrerenderContents* null = NULL;
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_EQ(null, prerender_manager()->next_prerender_contents());
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
 
   DummyPrerenderContents* prerender_contents1 =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_MANAGER_SHUTDOWN);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_EQ(prerender_contents1,
             prerender_manager()->next_prerender_contents());
   EXPECT_FALSE(prerender_contents1->prerendering_has_started());
 
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Ensure that we expire a prerendered page after the max. permitted time.
 TEST_F(PrerenderTest, ExpireTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_TIMED_OUT);
   DummyPrerenderContents* null = NULL;
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_EQ(null, prerender_manager()->next_prerender_contents());
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  prerender_manager()->AdvanceTime(prerender_manager()->GetMaxAge() +
-                                   base::TimeDelta::FromSeconds(1));
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  prerender_manager()->AdvanceTimeTicks(prerender_manager()->GetMaxAge() +
+                                        base::TimeDelta::FromSeconds(1));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
 }
 
 // LRU Test.  Make sure that if we prerender more than one request, that
 // the oldest one will be dropped.
 TEST_F(PrerenderTest, DropOldestRequestTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_EVICTED);
   DummyPrerenderContents* null = NULL;
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_EQ(null, prerender_manager()->next_prerender_contents());
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
 
   GURL url1("http://news.google.com/");
   DummyPrerenderContents* prerender_contents1 =
       prerender_manager()->CreateNextPrerenderContents(
           url1,
           FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url1));
   EXPECT_EQ(null, prerender_manager()->next_prerender_contents());
   EXPECT_TRUE(prerender_contents1->prerendering_has_started());
 
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
-  ASSERT_EQ(prerender_contents1, prerender_manager()->GetEntry(url1));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
+  ASSERT_EQ(prerender_contents1, prerender_manager()->FindAndUseEntry(url1));
 }
 
 // Two element prerender test.  Ensure that the LRU operates correctly if we
 // permit 2 elements to be kept prerendered.
 TEST_F(PrerenderTest, TwoElementPrerenderTest) {
   prerender_manager()->mutable_config().max_elements = 2;
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
@@ skipping 14 matching lines @@
 
   GURL url2("http://images.google.com/");
   DummyPrerenderContents* prerender_contents2 =
       prerender_manager()->CreateNextPrerenderContents(
           url2,
           FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url2));
   EXPECT_EQ(null, prerender_manager()->next_prerender_contents());
   EXPECT_TRUE(prerender_contents2->prerendering_has_started());
 
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
-  ASSERT_EQ(prerender_contents1, prerender_manager()->GetEntry(url1));
-  ASSERT_EQ(prerender_contents2, prerender_manager()->GetEntry(url2));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
+  ASSERT_EQ(prerender_contents1, prerender_manager()->FindAndUseEntry(url1));
+  ASSERT_EQ(prerender_contents2, prerender_manager()->FindAndUseEntry(url2));
 }
 
 TEST_F(PrerenderTest, AliasURLTest) {
   GURL url("http://www.google.com/");
   GURL alias_url1("http://www.google.com/index.html");
   GURL alias_url2("http://google.com/");
   GURL not_an_alias_url("http://google.com/index.html");
   std::vector<GURL> alias_urls;
   alias_urls.push_back(alias_url1);
   alias_urls.push_back(alias_url2);
 
   // Test that all of the aliases work, but not_an_alias_url does not.
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, alias_urls, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
-  ASSERT_EQ(NULL, prerender_manager()->GetEntry(not_an_alias_url));
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(alias_url1));
+  ASSERT_EQ(NULL, prerender_manager()->FindEntry(not_an_alias_url));
+  ASSERT_EQ(prerender_contents,
+            prerender_manager()->FindAndUseEntry(alias_url1));
   prerender_contents = prerender_manager()->CreateNextPrerenderContents(
           url, alias_urls, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(alias_url2));
+  ASSERT_EQ(prerender_contents,
+            prerender_manager()->FindAndUseEntry(alias_url2));
   prerender_contents = prerender_manager()->CreateNextPrerenderContents(
           url, alias_urls, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 
   // Test that alias URLs can not be added.
   prerender_contents = prerender_manager()->CreateNextPrerenderContents(
           url, alias_urls, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(AddSimplePrerender(alias_url1));
   EXPECT_TRUE(AddSimplePrerender(alias_url2));
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Ensure that we ignore prerender requests within the rate limit.
 TEST_F(PrerenderTest, RateLimitInWindowTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_MANAGER_SHUTDOWN);
   DummyPrerenderContents* null = NULL;
@@ skipping 47 matching lines @@
           FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
 
   int child_id;
   int route_id;
   ASSERT_TRUE(prerender_contents->GetChildId(&child_id));
   ASSERT_TRUE(prerender_contents->GetRouteId(&route_id));
 
   GURL pending_url("http://news.google.com/");
 
-  EXPECT_TRUE(prerender_manager()->AddPrerenderFromLinkRelPrerender(
-      child_id, route_id,
-      pending_url, Referrer(url, WebKit::WebReferrerPolicyDefault),
-      gfx::Size()));
+  DummyPrerenderContents* pending_prerender_contents =
+      prerender_manager()->CreateNextPrerenderContents(
+          pending_url,
+          ORIGIN_GWS_PRERENDER,
+          FINAL_STATUS_USED);
+  scoped_ptr<PrerenderHandle> pending_prerender_handle(
+      prerender_manager()->AddPrerenderFromLinkRelPrerender(
+          child_id, route_id, pending_url,
+          Referrer(url, WebKit::WebReferrerPolicyDefault), gfx::Size()));
+  DCHECK(pending_prerender_handle.get());
+  EXPECT_TRUE(pending_prerender_handle->IsValid());
+  EXPECT_TRUE(pending_prerender_handle->IsPending());
 
-  EXPECT_TRUE(prerender_manager()->IsPendingEntry(pending_url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
+
+  EXPECT_FALSE(pending_prerender_handle->IsPending());
+  ASSERT_EQ(pending_prerender_contents,
+            prerender_manager()->FindAndUseEntry(pending_url));
+}
+
+TEST_F(PrerenderTest, CancelPendingPrerenderTest) {
+  GURL url("http://www.google.com/");
+  DummyPrerenderContents* prerender_contents =
+      prerender_manager()->CreateNextPrerenderContents(
+          url,
+          FINAL_STATUS_USED);
+  EXPECT_TRUE(AddSimplePrerender(url));
+
+  int child_id;
+  int route_id;
+  ASSERT_TRUE(prerender_contents->GetChildId(&child_id));
+  ASSERT_TRUE(prerender_contents->GetRouteId(&route_id));
+
+  GURL pending_url("http://news.google.com/");
+
+  scoped_ptr<PrerenderHandle> pending_prerender_handle(
+      prerender_manager()->AddPrerenderFromLinkRelPrerender(
+          child_id, route_id, pending_url,
+          Referrer(url, WebKit::WebReferrerPolicyDefault), gfx::Size()));
+  DCHECK(pending_prerender_handle.get());
+  EXPECT_TRUE(pending_prerender_handle->IsValid());
+  EXPECT_TRUE(pending_prerender_handle->IsPending());
+
+  EXPECT_TRUE(prerender_contents->prerendering_has_started());
+
+  pending_prerender_handle->OnCancel();
+  EXPECT_FALSE(pending_prerender_handle->IsValid());
+
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Tests that a PrerenderManager created for a browser session in the control
 // group works as expected.
 TEST_F(PrerenderTest, ControlGroup) {
   RestorePrerenderMode restore_prerender_mode;
   PrerenderManager::SetMode(
       PrerenderManager::PRERENDER_MODE_EXPERIMENT_CONTROL_GROUP);
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
@@ skipping 30 matching lines @@
   EXPECT_FALSE(AddSimplePrerender(url));
   EXPECT_FALSE(prerender_contents->prerendering_has_started());
 }
 
 TEST_F(PrerenderTest, NotSoRecentlyVisited) {
   GURL url("http://www.google.com/");
 
   prerender_manager()->RecordNavigation(url);
   prerender_manager()->AdvanceTimeTicks(
       base::TimeDelta::FromMilliseconds(
-          PrerenderManager::kNavigationRecordWindowMs + 500));
+          UnitTestPrerenderManager::kNavigationRecordWindowMs + 500));
 
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Tests that our PPLT dummy prerender gets created properly.
 TEST_F(PrerenderTest, PPLTDummy) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_UNSUPPORTED_SCHEME);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
 
   DummyPrerenderContents* pplt_dummy_contents =
       prerender_manager()->CreateNextPrerenderContents(url,
                                                        FINAL_STATUS_USED);
   GURL ftp_url("ftp://ftp.google.com/");
   // Adding this ftp URL will force the expected unsupported scheme error.
   prerender_contents->AddAliasURL(ftp_url);
 
-  ASSERT_EQ(pplt_dummy_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(pplt_dummy_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // Tests that our PPLT dummy prerender gets created properly, even
 // when navigating to a page that has been recently navigated to.
 TEST_F(PrerenderTest, RecentlyVisitedPPLTDummy) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_UNSUPPORTED_SCHEME);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
 
   DummyPrerenderContents* pplt_dummy_contents =
       prerender_manager()->CreateNextPrerenderContents(url,
                                                        FINAL_STATUS_USED);
   prerender_manager()->RecordNavigation(url);
   GURL ftp_url("ftp://ftp.google.com/");
   prerender_contents->AddAliasURL(ftp_url);
 
-  ASSERT_EQ(pplt_dummy_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(pplt_dummy_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
-// Tests that the prerender manager ignores fragment references when matching
-// prerender URLs in the case the fragment is not in the prerender URL.
-TEST_F(PrerenderTest, PageMatchesFragmentTest) {
+// Tests that the prerender link manager discards fragments when launching,
+// and matches only occur on URLs without fragments.
+// TODO(gavinp): Drop this test once we are fragment clean.
+TEST_F(PrerenderTest, FragmentDroppedOnLaunchTest) {
+  GURL fragment_url("http://www.google.com/#test");
   GURL url("http://www.google.com/");
-  GURL fragment_url("http://www.google.com/#test");
 
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(url,
                                                        FINAL_STATUS_USED);
-  EXPECT_TRUE(AddSimplePrerender(url));
+  EXPECT_TRUE(AddSimplePrerender(fragment_url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(fragment_url));
+  EXPECT_FALSE(prerender_manager()->FindEntry(fragment_url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
-// Tests that the prerender manager ignores fragment references when matching
-// prerender URLs in the case the fragment is in the prerender URL.
-// TODO(gavinp): Re-enable this in the Prerender API once we're officially
+// Tests that the prerender manager matches include the fragment.
+// TODO(gavinp): Re-enable this once we are fragment clean.
 // fragment clean.
-TEST_F(PrerenderTest, DISABLED_FragmentMatchesPageTest) {
-  GURL url("http://www.google.com/");
+TEST_F(PrerenderTest, DISABLED_FragmentMatchesTest) {
   GURL fragment_url("http://www.google.com/#test");
 
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(fragment_url,
                                                        FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(fragment_url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents,
+            prerender_manager()->FindAndUseEntry(fragment_url));
 }
 
-// Tests that the prerender manager ignores fragment references when matching
-// prerender URLs in the case the fragment is in both URLs.
-// TODO(gavinp): Re-enable this in the Prerender API once we're officially
-// fragment clean.
-TEST_F(PrerenderTest, DISABLED_FragmentMatchesFragmentTest) {
+// Tests that the prerender manager uses fragment references when matching
+// prerender URLs in the case a different fragment is in both URLs.
+// TODO(gavinp): Re-enable this once we are fragment clean.
+TEST_F(PrerenderTest, DISABLED_FragmentsDifferTest) {
   GURL fragment_url("http://www.google.com/#test");
   GURL other_fragment_url("http://www.google.com/#other_test");
 
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(fragment_url,
                                                        FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(fragment_url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
+
+  DummyPrerenderContents* null = NULL;
+  ASSERT_EQ(null, prerender_manager()->FindEntry(other_fragment_url));
+
   ASSERT_EQ(prerender_contents,
-            prerender_manager()->GetEntry(other_fragment_url));
+            prerender_manager()->FindAndUseEntry(fragment_url));
 }
 
 // Make sure that clearing works as expected.
 TEST_F(PrerenderTest, ClearTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
           FINAL_STATUS_CACHE_OR_HISTORY_CLEARED);
   EXPECT_TRUE(AddSimplePrerender(url));
@@ skipping 39 matching lines @@
 
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
 
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
 }
 
 TEST_F(PrerenderTest, LinkManagerCancelThenAbandon) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_CANCELLED);
 
   EXPECT_TRUE(AddSimplePrerender(url));
 
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   prerender_link_manager()->OnAbandonPrerender(kDefaultChildId,
                                                last_prerender_id());
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
 }
 
-// TODO(gavinp): Update this test after abandon has an effect on Prerenders,
+// TODO(gavinp): Re-enabmed this test after abandon has an effect on Prerenders,
 // like shortening the timeouts.
 TEST_F(PrerenderTest, LinkManagerAbandon) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_USED);
 
   EXPECT_TRUE(AddSimplePrerender(url));
 
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
   prerender_link_manager()->OnAbandonPrerender(kDefaultChildId,
                                                last_prerender_id());
 
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
 }
 
 TEST_F(PrerenderTest, LinkManagerCancelTwice) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_CANCELLED);
 
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
 }
 
 TEST_F(PrerenderTest, LinkManagerAddTwiceCancelTwice) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_CANCELLED);
@@ skipping 14 matching lines @@
                                               first_prerender_id);
 
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               second_prerender_id);
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
 }
 
 TEST_F(PrerenderTest, LinkManagerAddTwiceCancelTwiceThenAbandonTwice) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_CANCELLED);
 
   EXPECT_TRUE(AddSimplePrerender(url));
@@ skipping 22 matching lines @@
                                                first_prerender_id);
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   prerender_link_manager()->OnAbandonPrerender(kDefaultChildId,
                                                second_prerender_id);
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
 }
 
 // TODO(gavinp): Update this test after abandon has an effect on Prerenders,
 // like shortening the timeouts.
 TEST_F(PrerenderTest, LinkManagerAddTwiceAbandonTwice) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_USED);
@@ skipping 13 matching lines @@
   prerender_link_manager()->OnAbandonPrerender(kDefaultChildId,
                                                first_prerender_id);
 
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnAbandonPrerender(kDefaultChildId,
                                                second_prerender_id);
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
-  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(prerender_contents, prerender_manager()->FindAndUseEntry(url));
 }
 
 // TODO(gavinp): After abandon shortens the expire time on a Prerender,
 // add a series of tests testing advancing the time by either the abandon
 // or normal expire, and verifying the expected behaviour with groups
 // of links.
 TEST_F(PrerenderTest, LinkManagerExpireThenCancel) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_TIMED_OUT);
 
   EXPECT_TRUE(AddSimplePrerender(url));
 
   EXPECT_TRUE(prerender_contents->prerendering_has_started());
   EXPECT_FALSE(prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(prerender_contents, prerender_manager()->FindEntry(url));
-  prerender_manager()->AdvanceTime(prerender_manager()->GetMaxAge() +
-                                   base::TimeDelta::FromSeconds(1));
+  prerender_manager()->AdvanceTimeTicks(prerender_manager()->GetMaxAge() +
+                                        base::TimeDelta::FromSeconds(1));
 
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
 
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
 }
 
 TEST_F(PrerenderTest, LinkManagerExpireThenAddAgain) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* first_prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_TIMED_OUT);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(first_prerender_contents->prerendering_has_started());
   EXPECT_FALSE(first_prerender_contents->prerendering_has_been_cancelled());
-  ASSERT_EQ(first_prerender_contents, prerender_manager()->FindEntry(url));
-  prerender_manager()->AdvanceTime(prerender_manager()->GetMaxAge() +
+  ASSERT_EQ(first_prerender_contents,
+            prerender_manager()->FindAndUseEntry(url));
+  prerender_manager()->AdvanceTimeTicks(prerender_manager()->GetMaxAge() +
                                    base::TimeDelta::FromSeconds(1));

[mmenke, 2012/07/10 18:01:13]

nit:  Fix indent

[gavinp, 2012/07/11 17:04:00]

Done.

   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
   DummyPrerenderContents* second_prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(second_prerender_contents->prerendering_has_started());
-  ASSERT_EQ(second_prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(second_prerender_contents,
+            prerender_manager()->FindAndUseEntry(url));
   // The PrerenderLinkManager is not empty since we never removed the first
   // prerender.
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
 }
 
 TEST_F(PrerenderTest, LinkManagerCancelThenAddAgain) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   GURL url("http://www.myexample.com");
   DummyPrerenderContents* first_prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_CANCELLED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(first_prerender_contents->prerendering_has_started());
   EXPECT_FALSE(first_prerender_contents->prerendering_has_been_cancelled());
   ASSERT_EQ(first_prerender_contents, prerender_manager()->FindEntry(url));
   prerender_link_manager()->OnCancelPrerender(kDefaultChildId,
                                               last_prerender_id());
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
   EXPECT_TRUE(first_prerender_contents->prerendering_has_been_cancelled());
   DummyPrerenderContents* null = NULL;
-  ASSERT_EQ(null, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(null, prerender_manager()->FindEntry(url));
   DummyPrerenderContents* second_prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url, FINAL_STATUS_USED);
   EXPECT_TRUE(AddSimplePrerender(url));
   EXPECT_TRUE(second_prerender_contents->prerendering_has_started());
-  ASSERT_EQ(second_prerender_contents, prerender_manager()->GetEntry(url));
+  ASSERT_EQ(second_prerender_contents,
+            prerender_manager()->FindAndUseEntry(url));
   EXPECT_FALSE(IsEmptyPrerenderLinkManager());
 }
 
 }  // namespace prerender