Add a new constructor to KeyEvent.

views/controls/button/custom_button.cc

 // Copyright (c) 2010 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 "views/controls/button/custom_button.h"
 
 #include "ui/base/animation/throb_animation.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "views/screen.h"
 
@@ skipping 119 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // CustomButton, View overrides (protected):
 
 bool CustomButton::AcceleratorPressed(const Accelerator& accelerator) {
   if (!enabled_)
     return false;
 
   SetState(BS_NORMAL);
   KeyEvent key_event(ui::ET_KEY_RELEASED, accelerator.GetKeyCode(),
-                     accelerator.modifiers(), 0, 0);
+                     accelerator.modifiers());
   NotifyClick(key_event);
   return true;
 }
 
 bool CustomButton::OnMousePressed(const MouseEvent& e) {
   if (state_ != BS_DISABLED) {
     if (ShouldEnterPushedState(e) && HitTest(e.location()))
       SetState(BS_PUSHED);
     if (request_focus_on_press_)
       RequestFocus();
@@ skipping 115 matching lines @@
 
 void CustomButton::AnimationProgressed(const ui::Animation* animation) {
   SchedulePaint();
 }
 
 bool CustomButton::ShouldEnterPushedState(const MouseEvent& e) {
   return IsTriggerableEvent(e);
 }
 
 }  // namespace views