Don't send touch events to windows like menus when the touch occurs outside the menu bounds.

ui/views/controls/menu/menu_host.h

Index: ui/views/controls/menu/menu_host.h
diff --git a/ui/views/controls/menu/menu_host.h b/ui/views/controls/menu/menu_host.h
index ef44bd06ddd60c90bec167ecad379e7f60c42742..ba931f8ed201dda2422230a39a280bbef8d4175c 100644
--- a/ui/views/controls/menu/menu_host.h
+++ b/ui/views/controls/menu/menu_host.h
@@ -7,6 +7,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/views/widget/widget.h"
 
@@ -17,6 +18,13 @@ class SubmenuView;
 class View;
 class Widget;
 
+namespace internal {
+
+// This class is internal to views.
+class PreMenuEventDispatchHandler;
+
+}  // internal
+
 // SubmenuView uses a MenuHost to house the SubmenuView.
 //
 // SubmenuView owns the MenuHost. When SubmenuView is done with the MenuHost
@@ -73,6 +81,11 @@ class MenuHost : public Widget {
   // If true and capture is lost we don't notify the delegate.
   bool ignore_capture_lost_;
 
+#if !defined(OS_MACOSX)
+  // Handles raw touch events at the moment.
+  scoped_ptr<internal::PreMenuEventDispatchHandler> pre_dispatch_handler_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(MenuHost);
 };