Fix bug 145175: [Win] Frameless app windows are not resizable if no draggable region is specified

chrome/browser/ui/extensions/native_shell_window.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_EXTENSIONS_NATIVE_SHELL_WINDOW_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_NATIVE_SHELL_WINDOW_H_
 
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/browser/ui/base_window.h"
 
@@ skipping 17 matching lines @@
   virtual void UpdateWindowIcon() = 0;
 
   // Called when the title of the window changes.
   virtual void UpdateWindowTitle() = 0;
 
   // Allows the window to handle unhandled keyboard messages coming back from
   // the renderer.
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) = 0;
 
+  // TODO(jianli): once http://crbug.com/123007 is fixed, we'll no longer need
+  // this.
+  virtual void RenderViewHostChanged() = 0;
+
   virtual ~NativeShellWindow() {}
 };
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_NATIVE_SHELL_WINDOW_H_