[WIN]Save work area of window and adjust bounds to ensure it fit on screen before show.

chrome/browser/ui/gtk/extensions/native_app_window_gtk.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_GTK_EXTENSIONS_NATIVE_APP_WINDOW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_EXTENSIONS_NATIVE_APP_WINDOW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include "base/observer_list.h"
@@ skipping 51 matching lines @@
   virtual void SetFullscreen(bool fullscreen) OVERRIDE;
   virtual bool IsFullscreenOrPending() const OVERRIDE;
   virtual void UpdateWindowIcon() OVERRIDE;
   virtual void UpdateWindowTitle() OVERRIDE;
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
   virtual void UpdateDraggableRegions(
       const std::vector<extensions::DraggableRegion>& regions) OVERRIDE;
   virtual void RenderViewHostChanged() OVERRIDE;
   virtual gfx::Insets GetFrameInsets() const OVERRIDE;
+  virtual gfx::Rect GetWindowWorkArea() const OVERRIDE;
 
   // web_modal::WebContentsModalDialogHost implementation.
   virtual gfx::NativeView GetHostView() const OVERRIDE;
   virtual gfx::Point GetDialogPosition(const gfx::Size& size) OVERRIDE;
   virtual void AddObserver(
       web_modal::WebContentsModalDialogHostObserver* observer) OVERRIDE;
   virtual void RemoveObserver(
       web_modal::WebContentsModalDialogHostObserver* observer) OVERRIDE;
 
   content::WebContents* web_contents() const {
@@ skipping 70 matching lines @@
   scoped_ptr<ExtensionKeybindingRegistryGtk> extension_keybinding_registry_;
 
   // Observers to be notified when any web contents modal dialog requires
   // updating its dimensions.
   ObserverList<web_modal::WebContentsModalDialogHostObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeAppWindowGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_EXTENSIONS_NATIVE_APP_WINDOW_GTK_H_