Disables showing tooltips while a system menu is showing on windows

content/browser/renderer_host/render_widget_host_view_aura.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 24 matching lines @@
 #include "ui/aura/window_delegate.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_observer.h"
 #include "ui/gfx/display_observer.h"
 #include "ui/gfx/rect.h"
 #include "webkit/common/cursors/webcursor.h"
 
 namespace aura {
 class WindowTracker;
+namespace client {
+class ScopedTooltipDisabler;
+}
 }
 
 namespace cc {
 class CopyOutputResult;
 class DelegatedFrameData;
 }
 
 namespace gfx {
 class Canvas;
 class Display;
@@ skipping 718 matching lines @@
 
   struct ReleasedFrameInfo {
     ReleasedFrameInfo(uint32 output_id, unsigned software_frame_id)
         : output_surface_id(output_id), frame_id(software_frame_id) {}
     uint32 output_surface_id;
     unsigned frame_id;
   };
   scoped_ptr<ReleasedFrameInfo> released_software_frame_;
   scoped_ptr<DelegatedFrameEvictor> delegated_frame_evictor_;
 
+  scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
+
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
 #if defined(OS_WIN)
   // The dummy HWND which corresponds to the bounds of the web page. This is
   // passed to windowless plugins like Flash/Silverlight, etc as the
   // container window.
   HWND plugin_parent_window_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_