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

ash/wm/shelf_layout_manager.cc

 // 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.
 
 #include "ash/wm/shelf_layout_manager.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/shell.h"
 #include "base/auto_reset.h"
 #include "ui/aura/root_window.h"
@@ skipping 133 matching lines @@
       launcher_bounds.height());
   if (visible)
     target_bounds->work_area_insets = gfx::Insets(0, 0, max_height_, 0);
 }
 
 void ShelfLayoutManager::OnImplicitAnimationsCompleted() {
   TargetBounds target_bounds;
   CalculateTargetBounds(visible_, &target_bounds);
   Shell::GetRootWindow()->screen()->set_work_area_insets(
       target_bounds.work_area_insets);
+  // Notify the RootWindow about work_area_insets change after the animation
+  // completes.
+  Shell::GetRootWindow()->OnScreenWorkAreaInsetsChanged();

[sky, 2012/02/28 20:49:26]

Forcing callers to invoke a method when the insets changes is easy to forget.
Instead add a setter on RootWindow that sets the insets and notifies should be
added.

[jennyz, 2012/03/01 00:56:13]

Done.

 }
 
 }  // namespace internal
 }  // namespace ash