Remove obsolete code in input method handling

ui/views/win/hwnd_message_handler.cc

 // 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.
 
 #include "ui/views/win/hwnd_message_handler.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include "base/bind.h"
@@ skipping 1230 matching lines @@
 
   fullscreen_handler_->set_hwnd(hwnd());
 
   // This message initializes the window so that focus border are shown for
   // windows.
   SendMessage(hwnd(),
               WM_CHANGEUISTATE,
               MAKELPARAM(UIS_CLEAR, UISF_HIDEFOCUS),
               0);
 
-  // Bug 964884: detach the IME attached to this window.
-  // We should attach IMEs only when we need to input CJK strings.
-  ImmAssociateContextEx(hwnd(), NULL, 0);
-
   if (remove_standard_frame_) {
     SetWindowLong(hwnd(), GWL_STYLE,
                   GetWindowLong(hwnd(), GWL_STYLE) & ~WS_CAPTION);
     SendFrameChanged();
   }
 
   // Get access to a modifiable copy of the system menu.
   GetSystemMenu(hwnd(), false);
 
   if (base::win::GetVersion() >= base::win::VERSION_WIN7)
@@ skipping 845 matching lines @@
     DwmExtendFrameIntoClientArea(hwnd(), &m);
   }
   if (window_pos->flags & SWP_SHOWWINDOW)
     delegate_->HandleVisibilityChanged(true);
   else if (window_pos->flags & SWP_HIDEWINDOW)
     delegate_->HandleVisibilityChanged(false);
   SetMsgHandled(FALSE);
 }
 
 }  // namespace views