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

chrome/browser/ui/panels/panel_host.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 "chrome/browser/ui/panels/panel_host.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 142 matching lines @@
 }
 
 void PanelHost::ActivateContents(content::WebContents* contents) {
   panel_->Activate();
 }
 
 void PanelHost::DeactivateContents(content::WebContents* contents) {
   panel_->Deactivate();
 }
 
-void PanelHost::LoadingStateChanged(content::WebContents* source) {
-  bool is_loading = source->IsLoading();
+void PanelHost::LoadingStateChanged(content::WebContents* source,
+    bool to_different_document) {
+  bool is_loading = source->IsLoading() && to_different_document;
   panel_->LoadingStateChanged(is_loading);
 }
 
 void PanelHost::CloseContents(content::WebContents* source) {
   panel_->Close();
 }
 
 void PanelHost::MoveContents(content::WebContents* source,
                              const gfx::Rect& pos) {
   panel_->SetBounds(pos);
@@ skipping 84 matching lines @@
 }
 
 void PanelHost::StopLoading() {
   content::RecordAction(UserMetricsAction("Stop"));
   web_contents_->Stop();
 }
 
 void PanelHost::Zoom(content::PageZoom zoom) {
   chrome_page_zoom::Zoom(web_contents_.get(), zoom);
 }