Remove the 2-level input method system & InputMethodBridge.

ui/views/controls/menu/menu_controller.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/controls/menu/menu_controller.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/rtl.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ skipping 2060 matching lines @@
   if (item->GetSubmenu()->GetMenuItemCount() == 0)
     return false;
 
   // Look for matches based on mnemonic first.
   SelectByCharDetails details =
       FindChildForMnemonic(item, key, &MatchesMnemonic);
   if (details.first_match != -1)
     return AcceptOrSelect(item, details);
 
   if (is_combobox_) {
-    item->GetSubmenu()->GetTextInputClient()->InsertChar(character, 0);
+    item->GetSubmenu()->GetPrefixSelector()->InsertChar(character, 0);
   } else {
     // If no mnemonics found, look at first character of titles.
     details = FindChildForMnemonic(item, key, &TitleMatchesMnemonic);
     if (details.first_match != -1)
       return AcceptOrSelect(item, details);
   }
 
   return false;
 }
 
@@ skipping 265 matching lines @@
   }
 }
 
 gfx::Screen* MenuController::GetScreen() {
   Widget* root = owner_ ? owner_->GetTopLevelWidget() : NULL;
   return root ? gfx::Screen::GetScreenFor(root->GetNativeView())
               : gfx::Screen::GetNativeScreen();
 }
 
 }  // namespace views