Added restore functionality for maximize full/left/right

ash/wm/custom_frame_view_ash.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/custom_frame_view_ash.h"
 
 #include "ash/wm/frame_painter.h"
 #include "ash/wm/workspace/frame_maximize_button.h"
+#include "ash/wm/workspace/workspace_event_filter.h"
 #include "grit/ui_resources.h"
 #include "grit/ui_strings.h"  // Accessibility names
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/widget/native_widget_aura.h"
@@ skipping 122 matching lines @@
   return frame_painter_->GetMinimumSize(this);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // views::ButtonListener overrides:
 void CustomFrameViewAsh::ButtonPressed(views::Button* sender,
                                        const ui::Event& event) {
   if (sender == maximize_button_) {
     // The maximize button may move out from under the cursor.
     ResetWindowControls();
-    if (frame_->IsMaximized())
-      frame_->Restore();
-    else
-      frame_->Maximize();
+    ash::ToggleMaximizedState(frame_->GetNativeWindow());
     // |this| may be deleted - some windows delete their frames on maximize.
   } else if (sender == close_button_) {
     frame_->Close();
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // CustomFrameViewAsh, private:
 
 int CustomFrameViewAsh::NonClientTopBorderHeight() const {
   // Reserve enough space to see the buttons, including any offset from top and
   // reserving space for the separator line.
   return close_button_->bounds().bottom() +
       frame_painter_->HeaderContentSeparatorSize();
 }
 
 }  // namespace ash