Mac: ExternalPopupMenu::close should hide a showing popup menu.

content/browser/renderer_host/popup_menu_helper_mac.h

Index: content/browser/renderer_host/popup_menu_helper_mac.h
diff --git a/content/browser/renderer_host/popup_menu_helper_mac.h b/content/browser/renderer_host/popup_menu_helper_mac.h
index 332fecdc54f57baf454e8d9afe5d439f7d8e11fe..962e41fd82eecffe86b8890d24380c3374b2f079 100644
--- a/content/browser/renderer_host/popup_menu_helper_mac.h
+++ b/content/browser/renderer_host/popup_menu_helper_mac.h
@@ -13,6 +13,12 @@
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/rect.h"
 
+#ifdef __OBJC__
+@class WebMenuRunner;
+#else
+class WebMenuRunner;
+#endif
+
 namespace content {
 class RenderViewHost;
 class RenderViewHostImpl;
@@ -24,6 +30,7 @@ class PopupMenuHelper : public NotificationObserver {
   // Creates a PopupMenuHelper that will notify |render_view_host| when a user
   // selects or cancels the popup.
   explicit PopupMenuHelper(RenderViewHost* render_view_host);
+  void Hide();
 
   // Shows the popup menu and notifies the RenderViewHost of the selection/
   // cancel.
@@ -48,8 +55,9 @@ class PopupMenuHelper : public NotificationObserver {
                        const NotificationDetails& details) OVERRIDE;
 
   NotificationRegistrar notification_registrar_;
-
+  WebMenuRunner* menu_runner_;
   RenderViewHostImpl* render_view_host_;
+  bool popup_was_hidden_;
 
   DISALLOW_COPY_AND_ASSIGN(PopupMenuHelper);
 };