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

ash/wm/workspace/workspace_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/workspace/workspace_manager.h"
 
 #include <algorithm>
 
 #include "ash/shell.h"
 #include "ash/wm/property_util.h"
@@ skipping 169 matching lines @@
 void WorkspaceManager::SetOverview(bool overview) {
   if (is_overview_ == overview)
     return;
   NOTIMPLEMENTED();
 }
 
 void WorkspaceManager::SetWorkspaceSize(const gfx::Size& workspace_size) {
   if (workspace_size == workspace_size_)
     return;
   workspace_size_ = workspace_size;
+  SetWorkspaceBounds();
+}
+
+void WorkspaceManager::SetWorkspaceBounds() {
   for (Workspaces::const_iterator i = workspaces_.begin();
        i != workspaces_.end(); ++i) {
     (*i)->SetBounds(GetWorkAreaBounds());
   }
 }
 
 gfx::Rect WorkspaceManager::AlignBoundsToGrid(const gfx::Rect& bounds) {
   if (grid_size_ <= 1)
     return bounds;
   return AlignRectToGrid(bounds, grid_size_);
@@ skipping 216 matching lines @@
   if (type == Workspace::TYPE_MAXIMIZED)
     workspace = new MaximizedWorkspace(this);
   else
     workspace = new ManagedWorkspace(this);
   AddWorkspace(workspace);
   return workspace;
 }
 
 }  // namespace internal
 }  // namespace ash