[MacViews] Update AppWindow when the native window changes fullscreen state.

chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm

 // Copyright 2013 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/cocoa/apps/native_app_window_cocoa.h"
 
 #include "base/command_line.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
 #include "base/mac/sdk_forward_declarations.h"
@@ skipping 745 matching lines @@
 
 void NativeAppWindowCocoa::WindowDidMiniaturize() {
   app_window_->OnNativeWindowChanged();
 }
 
 void NativeAppWindowCocoa::WindowDidDeminiaturize() {
   app_window_->OnNativeWindowChanged();
 }
 
 void NativeAppWindowCocoa::WindowDidEnterFullscreen() {
-  if (!is_fullscreen_) {
-    is_fullscreen_ = true;
-    app_window_->OSFullscreen();
-  }
-  app_window_->OnNativeWindowChanged();
+  is_fullscreen_ = true;
+  app_window_->UpdateOSFullscreenState(true);
 }
 
 void NativeAppWindowCocoa::WindowDidExitFullscreen() {
   is_fullscreen_ = false;
   if (!shows_fullscreen_controls_)
     gfx::SetNSWindowCanFullscreen(window(), false);
 
-  app_window_->Restore();
-  app_window_->OnNativeWindowChanged();
+  app_window_->UpdateOSFullscreenState(false);
 }
 
 void NativeAppWindowCocoa::WindowWillZoom() {
   // See top of file NOTE: Maximize and Zoom.
   if (IsMaximized())
     Restore();
   else
     Maximize();
 }
 
@@ skipping 72 matching lines @@
 }
 
 void NativeAppWindowCocoa::UpdateRestoredBounds() {
   if (IsRestored(*this))
     restored_bounds_ = [window() frame];
 }
 
 void NativeAppWindowCocoa::HideWithoutMarkingHidden() {
   [window() orderOut:window_controller_];
 }