events: Remove KeyEvent::Copy().

ash/wm/sticky_keys.cc

 // Copyright 2013 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 "ash/wm/sticky_keys.h"
 
 #if defined(USE_X11)
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 #undef RootWindow
@@ skipping 251 matching lines @@
   return event->type() == ui::ET_KEY_PRESSED ?
       OTHER_MODIFIER_DOWN : OTHER_MODIFIER_UP;
 }
 
 bool StickyKeysHandler::HandleDisabledState(ui::KeyEvent* event) {
   switch (TranslateKeyEvent(event)) {
     case TARGET_MODIFIER_UP:
       if (preparing_to_enable_) {
         preparing_to_enable_ = false;
         current_state_ = ENABLED;
-        modifier_up_event_.reset(event->Copy());
+        modifier_up_event_.reset(new ui::KeyEvent(*event));
         return true;
       }
       return false;
     case TARGET_MODIFIER_DOWN:
       preparing_to_enable_ = true;
       return false;
     case NORMAL_KEY_DOWN:
       preparing_to_enable_ = false;
       return false;
     case NORMAL_KEY_UP:
@@ skipping 135 matching lines @@
           &xievent->mods.effective));
     }
   }
 #elif defined(USE_OZONE)
   NOTIMPLEMENTED() << "Modifier key is not handled";
 #endif
   event->set_flags(event->flags() | modifier_flag_);
 }
 
 }  // namespace ash