Cleanup: Remove "gray text" logic from Omnibox

components/omnibox/browser/omnibox_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.
 
 // This file defines the interface class OmniboxView.  Each toolkit will
 // implement the edit view differently, so that code is inherently platform
 // specific.  However, the OmniboxEditModel needs to do some communication with
 // the view.  Since the model is shared between platforms, we need to define an
 // interface that all view implementations will share.
 
@@ skipping 171 matching lines @@
 
   // Returns the gfx::NativeView of the edit view.
   virtual gfx::NativeView GetNativeView() const = 0;
 
   // Gets the relative window for the pop up window of OmniboxPopupView. The pop
   // up window will be shown under the relative window. When an IME is attached
   // to the rich edit control, the IME window is the relative window. Otherwise,
   // the top-most window is the relative window.
   virtual gfx::NativeView GetRelativeWindowForPopup() const = 0;
 
-  // Shows |input| as gray suggested text after what the user has typed.
-  virtual void SetGrayTextAutocompletion(const base::string16& input) = 0;
-
-  // Returns the current gray suggested text.
-  virtual base::string16 GetGrayTextAutocompletion() const = 0;
-
   // Returns the width in pixels needed to display the current text. The
   // returned value includes margins.
   virtual int GetTextWidth() const = 0;
 
   // Returns the omnibox's width in pixels.
   virtual int GetWidth() const = 0;
 
   // Returns true if the user is composing something in an IME.
   virtual bool IsImeComposing() const = 0;
 
@@ skipping 65 matching lines @@
   friend class OmniboxViewMacTest;
 
   // |model_| can be NULL in tests.
   std::unique_ptr<OmniboxEditModel> model_;
   OmniboxEditController* controller_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxView);
 };
 
 #endif  // COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_VIEW_H_