Keep reference view pressed while extension actions have a popup

chrome/browser/ui/views/location_bar/page_action_image_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/location_bar/page_action_image_view.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 129 matching lines @@
 
 ExtensionActionViewController*
 PageActionImageView::GetPreferredPopupViewController() {
   return view_controller_.get();
 }
 
 views::View* PageActionImageView::GetReferenceViewForPopup() {
   return this;
 }
 
+views::MenuButton* PageActionImageView::GetContextMenuButton() {
+  return NULL;  // No menu button for page action views.
+}
+
 content::WebContents* PageActionImageView::GetCurrentWebContents() {
   return owner_->GetWebContents();
 }
 
 void PageActionImageView::HideActivePopup() {
   // The only popup that will be active is this popup.
   view_controller_->HidePopup();
 }