Added test to verify that onmostvisitedchange event is dispatched when an user navigate from SRP to…

chrome/browser/ui/search/instant_controller.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_
 #define CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_
 
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 290 matching lines @@
                            ReloadSearchAfterBackReloadsCorrectQuery);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedFirstTabTest,
                            RedirectToLocalOnLoadFailure);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest, KeyboardTogglesVoiceSearch);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest, HomeButtonAffectsMargin);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest, SearchReusesInstantTab);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest,
                            SearchDoesntReuseInstantTabWithoutSupport);
   FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest,
                            TypedSearchURLDoesntReuseInstantTab);
+  FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest,
+                           DispatchMVChangeEventWhileNavigatingBackToNTP);
 
   // Overridden from InstantPage::Delegate:
   // TODO(shishir): We assume that the WebContent's current RenderViewHost is
   // the RenderViewHost being created which is not always true. Fix this.
   virtual void InstantPageRenderViewCreated(
       const content::WebContents* contents) OVERRIDE;
   virtual void InstantSupportDetermined(
       const content::WebContents* contents,
       bool supports_instant) OVERRIDE;
   virtual void InstantPageRenderViewGone(
@@ skipping 216 matching lines @@
   // MODE_SEARCH_SUGGESTIONS, except in those cases where this is false.
   bool allow_overlay_to_show_search_suggestions_;
 
   // List of events and their timestamps, useful in debugging Instant behaviour.
   mutable std::list<std::pair<int64, std::string> > debug_events_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantController);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_