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

content/browser/frame_host/interstitial_page_impl.cc

Index: content/browser/frame_host/interstitial_page_impl.cc
diff --git a/content/browser/frame_host/interstitial_page_impl.cc b/content/browser/frame_host/interstitial_page_impl.cc
index af32c0dc69ca4c6fb6f62a132be40d1b1ea2569c..62e81d6c738f6e259d455f1fefe60e2b8768c215 100644
--- a/content/browser/frame_host/interstitial_page_impl.cc
+++ b/content/browser/frame_host/interstitial_page_impl.cc
@@ -84,6 +84,7 @@ class InterstitialPageImpl::InterstitialPageRVHDelegateView
                              const std::vector<MenuItem>& items,
                              bool right_aligned,
                              bool allow_multiple_selection) OVERRIDE;
+  virtual void HidePopupMenu() OVERRIDE;
   virtual void StartDragging(const DropData& drop_data,
                              WebDragOperationsMask operations_allowed,
                              const gfx::ImageSkia& image,
@@ -857,6 +858,10 @@ void InterstitialPageImpl::InterstitialPageRVHDelegateView::ShowPopupMenu(
   NOTREACHED() << "InterstitialPage does not support showing popup menus.";
 }
 
+void InterstitialPageImpl::InterstitialPageRVHDelegateView::HidePopupMenu() {
+  NOTREACHED() << "InterstitialPage does not support showing popup menus.";
+}
+
 void InterstitialPageImpl::InterstitialPageRVHDelegateView::StartDragging(
     const DropData& drop_data,
     WebDragOperationsMask allowed_operations,