Make IsTriggerableEvent take Event objects and use it to verify whether tap events should trigger.

chrome/browser/ui/views/event_utils.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_EVENT_UTILS_H_
 #define CHROME_BROWSER_UI_VIEWS_EVENT_UTILS_H_
 #pragma once
 
 namespace views {
-class MouseEvent;
+class Event;
 }
 
 namespace event_utils {
 
-// Returns true if the specified mouse event may have a
+// Returns true if the specified event may have a
 // WindowOptionDisposition.
-bool IsPossibleDispositionEvent(const views::MouseEvent& event);
+bool IsPossibleDispositionEvent(const views::Event& event);
 
 }  // namespace event_utils
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EVENT_UTILS_H_