Convert KeyboardDrivenEventRewriter to a ui::EventRewriter.

chrome/browser/chromeos/events/event_rewriter.h

 // Copyright 2014 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_CHROMEOS_EVENTS_EVENT_REWRITER_H_
 #define CHROME_BROWSER_CHROMEOS_EVENTS_EVENT_REWRITER_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/device_hierarchy_observer.h"
 #include "chromeos/ime/ime_keyboard.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/events/platform/platform_event_observer.h"
 
 class PrefService;
 typedef union _XEvent XEvent;
 
 namespace chromeos {
-class KeyboardDrivenEventRewriter;
 namespace input_method {
 class ImeKeyboard;
 }
 
 class EventRewriter : public DeviceHierarchyObserver,
                       public ui::PlatformEventObserver {
  public:
   enum DeviceType {
     kDeviceUnknown = 0,
     kDeviceAppleKeyboard,
@@ skipping 150 matching lines @@
   int last_device_id_;
 
   // A mapping from X11 KeySym keys to KeyCode values.
   base::hash_map<unsigned long, unsigned long> keysym_to_keycode_map_;
 
   // A set of device IDs whose press event has been rewritten.
   std::set<int> pressed_device_ids_;
 
   input_method::ImeKeyboard* keyboard_for_testing_;
 
-  scoped_ptr<KeyboardDrivenEventRewriter>
-      keyboard_driven_event_rewriter_;
-
   const PrefService* pref_service_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(EventRewriter);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_EVENTS_EVENT_REWRITER_H_