Disables showing tooltips while a system menu is showing on windows

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index 4039c5b6048c149a557d4bf6b88e1ba6c260111b..320bf66f7781dbff8889127cd7f9bed1b0c5094c 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -42,6 +42,9 @@
 
 namespace aura {
 class WindowTracker;
+namespace client {
+class ScopedTooltipDisabler;
+}
 }
 
 namespace cc {
@@ -780,6 +783,8 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   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)