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

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 0847fa981ac7c95e682792f231eb2f3f65d83d11..6ff2cd9fc27fa8853ca81896a7ff068724a7b8b8 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -4938,6 +4938,12 @@ void RenderViewImpl::OnSelectPopupMenuItems(
 }
 #endif
 
+void RenderViewImpl::DidHideExternalPopupMenu() {
+  // We need to clear external_popup_menu_ as soon as ExternalPopupMenu::close
+  // is called. Otherwise, createExternalPopupMenu() for new popup will fail.
+  external_popup_menu_.reset();
+}
+
 void RenderViewImpl::OnShowContextMenu(const gfx::Point& location) {
   context_menu_source_type_ = ui::MENU_SOURCE_TOUCH_EDIT_MENU;
   touch_editing_context_menu_location_ = location;