Use ui::PAGE_TRANSITION_RELOAD transition for web page reload.

ios/web/web_state/navigation_callbacks_inttest.mm

 // Copyright 2017 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 <memory>
 #include <string>
 
 #include "base/memory/ptr_util.h"
 #import "ios/web/public/navigation_item.h"
 #import "ios/web/public/navigation_manager.h"
@@ skipping 154 matching lines @@
   EXPECT_FALSE((*context)->GetError());
   EXPECT_FALSE((*context)->GetResponseHeaders());
   // TODO(crbug.com/676129): Reload does not create a pending item. Check
   // pending item once the bug is fixed.
   EXPECT_FALSE(web_state->GetNavigationManager()->GetPendingItem());
 }
 
 // Verifies correctness of |NavigationContext| (|arg0|) for reload navigation
 // passed to |DidFinishNavigation|. Asserts that |NavigationContext| the same as
 // |context|.
-ACTION_P3(VerifyReloadFinishedContext, web_state, url, context) {
+ACTION_P4(VerifyReloadFinishedContext, web_state, url, context, is_web_page) {
   ASSERT_EQ(*context, arg0);
   ASSERT_TRUE(*context);
   EXPECT_EQ(web_state, (*context)->GetWebState());
   EXPECT_EQ(url, (*context)->GetUrl());
   EXPECT_TRUE(
       PageTransitionCoreTypeIs(ui::PageTransition::PAGE_TRANSITION_RELOAD,
                                (*context)->GetPageTransition()));
   EXPECT_FALSE((*context)->IsSameDocument());
   EXPECT_FALSE((*context)->GetError());
-  EXPECT_FALSE((*context)->GetResponseHeaders());
+  if (is_web_page) {
+    ASSERT_TRUE((*context)->GetResponseHeaders());
+    std::string mime_type;
+    (*context)->GetResponseHeaders()->GetMimeType(&mime_type);
+    EXPECT_EQ(kExpectedMimeType, mime_type);
+  } else {
+    EXPECT_FALSE((*context)->GetResponseHeaders());
+  }
   NavigationManager* navigation_manager = web_state->GetNavigationManager();
   NavigationItem* item = navigation_manager->GetLastCommittedItem();
   EXPECT_GT(item->GetTimestamp().ToInternalValue(), 0);
   EXPECT_EQ(url, item->GetURL());
 }
 
 // Mocks DidFinishNavigation navigation callback.
 class WebStateObserverMock : public WebStateObserver {
  public:
   WebStateObserverMock(WebState* web_state) : WebStateObserver(web_state) {}
@@ skipping 27 matching lines @@
 
   // Perform new page navigation.
   NavigationContext* context = nullptr;
   EXPECT_CALL(*observer_, DidStartNavigation(_))
       .WillOnce(VerifyNewPageStartedContext(web_state(), url, &context));
   EXPECT_CALL(*observer_, DidFinishNavigation(_))
       .WillOnce(VerifyNewPageFinishedContext(web_state(), url, &context));
   LoadUrl(url);
 }
 
+// Tests web page reload navigation.
+TEST_F(StartAndFinishNavigationTest, WebPageReloadNavigation) {
+  const GURL url = HttpServer::MakeUrl("http://chromium.test");
+  std::map<GURL, std::string> responses;
+  responses[url] = "Chromium Test";
+  web::test::SetUpSimpleHttpServer(responses);
+
+  // Perform new page navigation.
+  NavigationContext* context = nullptr;
+  EXPECT_CALL(*observer_, DidStartNavigation(_));
+  EXPECT_CALL(*observer_, DidFinishNavigation(_));
+  LoadUrl(url);
+
+  // Reload web page.
+  EXPECT_CALL(*observer_, DidStartNavigation(_))
+      .WillOnce(VerifyReloadStartedContext(web_state(), url, &context));
+  EXPECT_CALL(*observer_, DidFinishNavigation(_))
+      .WillOnce(VerifyReloadFinishedContext(web_state(), url, &context,
+                                            true /* is_web_page */));
+  // TODO(crbug.com/700958): ios/web ignores |check_for_repost| flag and current
+  // delegate does not run callback for ShowRepostFormWarningDialog. Clearing
+  // the delegate will allow form resubmission. Remove this workaround (clearing
+  // the delegate, once |check_for_repost| is supported).
+  web_state()->SetDelegate(nullptr);
+  ExecuteBlockAndWaitForLoad(url, ^{
+    navigation_manager()->Reload(ReloadType::NORMAL,
+                                 false /*check_for_repost*/);
+  });
+}
+
 // Tests user-initiated hash change.
 TEST_F(StartAndFinishNavigationTest, UserInitiatedHashChangeNavigation) {
   const GURL url = HttpServer::MakeUrl("http://chromium.test");
   std::map<GURL, std::string> responses;
   responses[url] = "Chromium Test";
   web::test::SetUpSimpleHttpServer(responses);
 
   // Perform new page navigation.
   NavigationContext* context = nullptr;
   EXPECT_CALL(*observer_, DidStartNavigation(_))
@@ skipping 112 matching lines @@
   GURL url(url::SchemeHostPort(kTestNativeContentScheme, "ui", 0).Serialize());
   NavigationContext* context = nullptr;
   EXPECT_CALL(*observer_, DidStartNavigation(_));
   EXPECT_CALL(*observer_, DidFinishNavigation(_));
   LoadUrl(url);
 
   // Reload native content.
   EXPECT_CALL(*observer_, DidStartNavigation(_))
       .WillOnce(VerifyReloadStartedContext(web_state(), url, &context));
   EXPECT_CALL(*observer_, DidFinishNavigation(_))
-      .WillOnce(VerifyReloadFinishedContext(web_state(), url, &context));
+      .WillOnce(VerifyReloadFinishedContext(web_state(), url, &context,
+                                            false /* is_web_page */));
   navigation_manager()->Reload(ReloadType::NORMAL, false /*check_for_repost*/);
 }
 
 }  // namespace web