Remove candidate show/hide/update related code

content/renderer/render_widget.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 CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <map>
 
@@ skipping 408 matching lines @@
   void OnDisableDeviceEmulation();
   void OnColorProfile(const std::vector<char>& color_profile);
   void OnChangeResizeRect(const gfx::Rect& resizer_rect);
   virtual void OnWasHidden();
   virtual void OnWasShown(bool needs_repainting,
                           const ui::LatencyInfo& latency_info);
   void OnCreateVideoAck(int32 video_id);
   void OnUpdateVideoAck(int32 video_id);
   void OnRequestMoveAck();
   void OnSetInputMethodActive(bool is_active);
-  void OnCandidateWindowShown();
-  void OnCandidateWindowUpdated();
-  void OnCandidateWindowHidden();
   virtual void OnImeSetComposition(
       const base::string16& text,
       const std::vector<blink::WebCompositionUnderline>& underlines,
       int selection_start,
       int selection_end);
   virtual void OnImeConfirmComposition(const base::string16& text,
                                        const gfx::Range& replacement_range,
                                        bool keep_selection);
   void OnRepaint(gfx::Size size_to_paint);
   void OnSyntheticGestureCompleted();
@@ skipping 370 matching lines @@
   ui::MenuSourceType context_menu_source_type_;
   bool has_host_context_menu_location_;
   gfx::Point host_context_menu_location_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_