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

extensions/browser/app_window/app_window.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_
 #define EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 270 matching lines @@
   // Transitions window into fullscreen, maximized, minimized or restores based
   // on chrome.app.window API.
   void Fullscreen();
   void Maximize();
   void Minimize();
   void Restore();
 
   // Transitions to OS fullscreen. See FULLSCREEN_TYPE_OS for more details.
   void OSFullscreen();
 
+  // Called when the OS has made the window fullscreen to ensure AppWindow stays
+  // in sync.
+  void UpdateOSFullscreenState(bool is_fullscreen);

[tapted, 2015/06/09 06:04:01]

nit: Maybe OnOSFullscreenStateChanged? or OnBecameFullscreenByOS?

[jackhou1, 2015/06/10 05:06:03]

Removed.

+
   // Transitions to forced fullscreen. See FULLSCREEN_TYPE_FORCED for more
   // details.
   void ForcedFullscreen();
 
   // Set the minimum and maximum size of the content bounds.
   void SetContentSizeConstraints(const gfx::Size& min_size,
                                  const gfx::Size& max_size);
 
   enum ShowType { SHOW_ACTIVE, SHOW_INACTIVE };
 
@@ skipping 247 matching lines @@
   bool is_ime_window_;
 
   base::WeakPtrFactory<AppWindow> image_loader_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_