Fix the full screen switching browser window dipping below launcher bar issue.

ui/aura/root_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 UI_AURA_ROOT_WINDOW_H_
 #define UI_AURA_ROOT_WINDOW_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 55 matching lines @@
   static bool hide_host_cursor() {
     return hide_host_cursor_;
   }
 
   ui::Compositor* compositor() { return compositor_.get(); }
   gfx::Point last_mouse_location() const { return last_mouse_location_; }
   gfx::NativeCursor last_cursor() const { return last_cursor_; }
   bool cursor_shown() const { return cursor_shown_; }
   Window* mouse_pressed_handler() { return mouse_pressed_handler_; }
   Window* capture_window() { return capture_window_; }
-  ScreenAura* screen() { return screen_; }
+  const ScreenAura* screen() { return screen_; }
 
   // Shows the root window host.
   void ShowRootWindow();
 
   // Sets the size of the root window.
   void SetHostSize(const gfx::Size& size);
   gfx::Size GetHostSize() const;
 
+  // Sets the screen's work area insets.

[sky, 2012/03/01 01:43:19]

Add that this notifies observers too.

[jennyz, 2012/03/01 18:27:45]

Done.

+  void SetScreenWorkAreaInsets(const gfx::Insets& insets);
+
   // Sets the currently-displayed cursor. If the cursor was previously hidden
   // via ShowCursor(false), it will remain hidden until ShowCursor(true) is
   // called, at which point the cursor that was last set via SetCursor() will be
   // used.
   void SetCursor(gfx::NativeCursor cursor);
 
   // Shows or hides the cursor.
   void ShowCursor(bool show);
 
   // Moves the cursor to the specified location relative to the root window.
@@ skipping 215 matching lines @@
   bool synthesize_mouse_move_;
   bool waiting_on_compositing_end_;
   bool draw_on_compositing_end_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_