Remove the 2-level input method system & InputMethodBridge.

ui/views/controls/menu/submenu_view.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_CONTROLS_MENU_SUBMENU_VIEW_H_
 #define UI_VIEWS_CONTROLS_MENU_SUBMENU_VIEW_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 34 matching lines @@
   explicit SubmenuView(MenuItemView* parent);
   ~SubmenuView() override;
 
   // Returns the number of child views that are MenuItemViews.
   // MenuItemViews are identified by ID.
   int GetMenuItemCount();
 
   // Returns the MenuItemView at the specified index.
   MenuItemView* GetMenuItemAt(int index);
 
+  ui::TextInputClient* GetTextInputClient();
+
   // Positions and sizes the child views. This tiles the views vertically,
   // giving each child the available width.
   void Layout() override;
   gfx::Size GetPreferredSize() const override;
 
   // Override from View.
   void GetAccessibleState(ui::AXViewState* state) override;
-  ui::TextInputClient* GetTextInputClient() override;
 
   // Painting.
   void PaintChildren(const ui::PaintContext& context) override;
 
   // Drag and drop methods. These are forwarded to the MenuController.
   bool GetDropFormats(
       int* formats,
       std::set<OSExchangeData::CustomFormat>* custom_formats) override;
   bool AreDropTypesRequired() override;
   bool CanDrop(const OSExchangeData& data) override;
@@ skipping 139 matching lines @@
   float roundoff_error_;
 
   PrefixSelector prefix_selector_;
 
   DISALLOW_COPY_AND_ASSIGN(SubmenuView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_SUBMENU_VIEW_H_