Remove WM_DEADCHAR/WM_SYSDEADCHAR handler

ui/views/win/hwnd_message_handler.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 UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 #define UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 
 #include <windows.h>
 
 #include <set>
@@ skipping 297 matching lines @@
 
     // IME Events.
     CR_MESSAGE_HANDLER_EX(WM_IME_SETCONTEXT, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_IME_STARTCOMPOSITION, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_IME_COMPOSITION, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_IME_ENDCOMPOSITION, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_IME_REQUEST, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_IME_NOTIFY, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_CHAR, OnImeMessages)
     CR_MESSAGE_HANDLER_EX(WM_SYSCHAR, OnImeMessages)
-    CR_MESSAGE_HANDLER_EX(WM_DEADCHAR, OnImeMessages)
-    CR_MESSAGE_HANDLER_EX(WM_SYSDEADCHAR, OnImeMessages)
 
     // Scroll events
     CR_MESSAGE_HANDLER_EX(WM_VSCROLL, OnScrollMessage)
     CR_MESSAGE_HANDLER_EX(WM_HSCROLL, OnScrollMessage)
 
     // Touch Events.
     CR_MESSAGE_HANDLER_EX(WM_TOUCH, OnTouchEvent)
 
     // Uses the general handler macro since the specific handler macro
     // MSG_WM_NCACTIVATE would convert WPARAM type to BOOL type. The high
@@ skipping 215 matching lines @@
 };
 
 // This window property if set on the window does not activate the window for a
 // touch based WM_MOUSEACTIVATE message.
 const wchar_t kIgnoreTouchMouseActivateForWindow[] =
     L"Chrome.IgnoreMouseActivate";
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_