Revert of [KeyEvent Mac] Move WebInputEventFactory into chromium.

ui/events/keycodes/keyboard_code_conversion_mac.h

 // 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.
 
 #ifndef UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_MAC_H_
 #define UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
 // -1 will be returned if the keycode can't be converted.
 // This function is mainly for simulating keyboard events in unit tests.
 // See |KeyboardCodeFromNSEvent| for reverse conversion.
 EVENTS_BASE_EXPORT int MacKeyCodeForWindowsKeyCode(
     KeyboardCode keycode,
     NSUInteger flags,
     unichar* us_keyboard_shifted_character,
     unichar* keyboard_character);
 
 // This implementation cribbed from:
-//   content/browser/render_host/input/web_input_event_builder_mac.mm
+//   third_party/WebKit/Source/web/mac/WebInputEventFactory.mm
 // Converts |event| into a |KeyboardCode|.  The mapping is not direct as the Mac
 // has a different notion of key codes.
 EVENTS_BASE_EXPORT KeyboardCode KeyboardCodeFromNSEvent(NSEvent* event);
 
 EVENTS_BASE_EXPORT DomCode CodeFromNSEvent(NSEvent* event);
 
 } // namespace ui
 
 #endif  // UI_EVENTS_KEYCODES_KEYBOARD_CODE_CONVERSION_MAC_H_