Fix pushState causing stop/reload button and favicon to flicker.

chrome/browser/ui/browser.cc

 // 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.
 
 #include "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 897 matching lines @@
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_TAB_PARENTED,
       content::Source<content::WebContents>(contents),
       content::NotificationService::NoDetails());
 
   SyncHistoryWithTabs(index);
 
   // Make sure the loading state is updated correctly, otherwise the throbber
   // won't start if the page is loading.
-  LoadingStateChanged(contents);
+  LoadingStateChanged(contents, true);
 
   interstitial_observers_.push_back(new InterstitialObserver(this, contents));
 
   SessionService* session_service =
       SessionServiceFactory::GetForProfile(profile_);
   if (session_service) {
     session_service->TabInserted(contents);
     int new_active_index = tab_strip_model_->active_index();
     if (index < new_active_index)
       session_service->SetSelectedTabInWindow(session_id(),
@@ skipping 404 matching lines @@
 void Browser::ActivateContents(WebContents* contents) {
   tab_strip_model_->ActivateTabAt(
       tab_strip_model_->GetIndexOfWebContents(contents), false);
   window_->Activate();
 }
 
 void Browser::DeactivateContents(WebContents* contents) {
   window_->Deactivate();
 }
 
-void Browser::LoadingStateChanged(WebContents* source) {
+void Browser::LoadingStateChanged(WebContents* source,
+    bool to_different_document) {
   window_->UpdateLoadingAnimations(tab_strip_model_->TabsAreLoading());
   window_->UpdateTitleBar();
 
   WebContents* selected_contents = tab_strip_model_->GetActiveWebContents();
   if (source == selected_contents) {
-    bool is_loading = source->IsLoading();
+    bool is_loading = source->IsLoading() && to_different_document;
     command_controller_->LoadingStateChanged(is_loading, false);
     if (GetStatusBubble()) {
       GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
           tab_strip_model_->GetActiveWebContents())->GetStatusText());
     }
   }
 }
 
 void Browser::CloseContents(WebContents* source) {
   bool can_close_contents;
@@ skipping 986 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }