Remove the 2-level input method system & InputMethodBridge.

ui/views/controls/prefix_selector.cc

 // Copyright 2013 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/prefix_selector.h"
 
 #include "base/i18n/case_conversion.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/range/range.h"
 #include "ui/views/controls/prefix_delegate.h"
@@ skipping 37 matching lines @@
 }
 
 void PrefixSelector::InsertText(const base::string16& text) {
   OnTextInput(text);
 }
 
 void PrefixSelector::InsertChar(base::char16 ch, int flags) {
   OnTextInput(base::string16(1, ch));
 }
 
-gfx::NativeWindow PrefixSelector::GetAttachedWindow() const {
-  return prefix_delegate_->GetWidget()->GetNativeWindow();
-}
-
 ui::TextInputType PrefixSelector::GetTextInputType() const {
   return ui::TEXT_INPUT_TYPE_TEXT;
 }
 
 ui::TextInputMode PrefixSelector::GetTextInputMode() const {
   return ui::TEXT_INPUT_MODE_DEFAULT;
 }
 
 int PrefixSelector::GetTextInputFlags() const {
   return 0;
@@ skipping 118 matching lines @@
   return (model_text.size() >= lower_text.size()) &&
       (model_text.compare(0, lower_text.size(), lower_text) == 0);
 }
 
 void PrefixSelector::ClearText() {
   current_text_.clear();
   time_of_last_key_ = base::TimeTicks();
 }
 
 }  // namespace views