Remove candidate show/hide/update related code

ui/views/controls/textfield/textfield.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_TEXTFIELD_TEXTFIELD_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 288 matching lines @@
   bool GetSelectionRange(gfx::Range* range) const override;
   bool SetSelectionRange(const gfx::Range& range) override;
   bool DeleteRange(const gfx::Range& range) override;
   bool GetTextFromRange(const gfx::Range& range,
                         base::string16* text) const override;
   void OnInputMethodChanged() override;
   bool ChangeTextDirectionAndLayoutAlignment(
       base::i18n::TextDirection direction) override;
   void ExtendSelectionAndDelete(size_t before, size_t after) override;
   void EnsureCaretInRect(const gfx::Rect& rect) override;
-  void OnCandidateWindowShown() override;
-  void OnCandidateWindowUpdated() override;
-  void OnCandidateWindowHidden() override;
   bool IsEditCommandEnabled(int command_id) override;
   void SetEditCommandForNextKeyEvent(int command_id) override;
 
  protected:
   // Inserts or appends a character in response to an IME operation.
   virtual void DoInsertChar(base::char16 ch);
 
   // Returns the TextfieldModel's text/cursor/selection rendering model.
   gfx::RenderText* GetRenderText() const;
 
@@ skipping 166 matching lines @@
 
   // Used to bind callback functions to this object.
   base::WeakPtrFactory<Textfield> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Textfield);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_