Makes the launcher auto-hide for maximized windows. This turned out to

ash/wm/workspace/maximized_workspace.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/maximized_workspace.h"
 
+#include "ash/screen_ash.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace/workspace_manager.h"
 #include "base/logging.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/screen.h"
 
@@ skipping 13 matching lines @@
 }
 
 void MaximizedWorkspace::OnWindowAddedAfter(aura::Window* window,
                                             aura::Window* after) {
   ResetWindowBounds(window);
 }
 
 void MaximizedWorkspace::OnWindowRemoved(aura::Window* window) {
 }
 
-void MaximizedWorkspace::OnWorkspaceSizeChanged(const gfx::Rect& old_bounds) {
-  for (size_t i = 0; i < windows().size(); ++i)
-    ResetWindowBounds(windows()[i]);
-}
-
 void MaximizedWorkspace::ResetWindowBounds(aura::Window* window) {
   if (wm::IsWindowFullscreen(window)) {
     SetWindowBounds(window,
                     gfx::Screen::GetMonitorAreaNearestWindow(window));
   } else {
-    SetWindowBounds(window, bounds());
+    SetWindowBounds(window, ScreenAsh::GetMaximizedWindowBounds(window));
   }
 }
 
 }  // namespace internal
 }  // namespace ash