added CTRL+Click and SHIFT+Click handler for context menu, Back and Forward.

chrome/browser/ui/event_disposition_utils.cc

 // Copyright (c) 2011 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/event_utils.h"
 
 #include "content/browser/disposition_utils.h"
-#include "views/events/event.h"
-
-using views::Event;
+#include "ui/base/events.h"
 
 namespace event_utils {
 
 WindowOpenDisposition DispositionFromEventFlags(int event_flags) {
   return disposition_utils::DispositionFromClick(
       (event_flags & ui::EF_MIDDLE_BUTTON_DOWN) != 0,
       (event_flags & ui::EF_ALT_DOWN) != 0,
       (event_flags & ui::EF_CONTROL_DOWN) != 0,
       false /* meta_key */,
       (event_flags & ui::EF_SHIFT_DOWN) != 0);
 }
 
-bool IsPossibleDispositionEvent(const views::MouseEvent& event) {
-  return event.IsLeftMouseButton() || event.IsMiddleMouseButton();
 }
-
-}