Cleanup mojo Wallpaper interfaces for mash.

ash/common/wallpaper/wallpaper_delegate.h

 // Copyright 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 ASH_COMMON_WALLPAPER_WALLPAPER_DELEGATE_H_
 #define ASH_COMMON_WALLPAPER_WALLPAPER_DELEGATE_H_
 
 #include "ash/ash_export.h"
 
 namespace ash {
@@ skipping 23 matching lines @@
   // cache should be cleared. This is required when the display's native
   // resolution changes to a larger resolution (e.g. when hooked up a large
   // external display) and we need to load a larger resolution wallpaper for the
   // large display. All the previous small resolution wallpaper cache should be
   // cleared.
   virtual void UpdateWallpaper(bool clear_cache) = 0;
 
   // Initialize wallpaper.
   virtual void InitializeWallpaper() = 0;
 
-  // Opens the set wallpaper page in the browser.
-  virtual void OpenSetWallpaperPage() = 0;
-
   // Returns true if user can open set wallpaper page.
   virtual bool CanOpenSetWallpaperPage() = 0;
 
   // Notifies delegate that wallpaper animation has finished.
   virtual void OnWallpaperAnimationFinished() = 0;
 
   // Notifies delegate that wallpaper boot animation has finished.
   virtual void OnWallpaperBootAnimationFinished() = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WALLPAPER_WALLPAPER_DELEGATE_H_