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

chrome/browser/ui/cocoa/web_dialog_window_controller.mm

Index: chrome/browser/ui/cocoa/web_dialog_window_controller.mm
diff --git a/chrome/browser/ui/cocoa/web_dialog_window_controller.mm b/chrome/browser/ui/cocoa/web_dialog_window_controller.mm
index 3e61033dfa0aa6316791a0cf3d1867ed124b0a7b..db0be898b1a192b24c24ff66f0384c7d5340dd80 100644
--- a/chrome/browser/ui/cocoa/web_dialog_window_controller.mm
+++ b/chrome/browser/ui/cocoa/web_dialog_window_controller.mm
@@ -73,7 +73,8 @@ public:
                               const gfx::Rect& initial_pos,
                               bool user_gesture,
                               bool* was_blocked) OVERRIDE;
-  virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE;
+  virtual void LoadingStateChanged(content::WebContents* source,
+                                   bool to_different_document) OVERRIDE;
 
 private:
   WebDialogWindowController* controller_;  // weak
@@ -240,7 +241,7 @@ void WebDialogWindowDelegateBridge::AddNewContents(
 }
 
 void WebDialogWindowDelegateBridge::LoadingStateChanged(
-    content::WebContents* source) {
+    content::WebContents* source, bool to_different_document) {
   if (delegate_)
     delegate_->OnLoadingStateChanged(source);
 }