Remove Ash shelf dimmer.

ash/aura/wm_shelf_aura.cc

 // Copyright 2016 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.
 
 #include "ash/aura/wm_shelf_aura.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/shelf/shelf_layout_manager.h"
-#include "ash/shelf/dimmer_view.h"
 #include "ash/shelf/shelf_bezel_event_handler.h"
 #include "ash/shell.h"
 
 namespace ash {
 
 // WmShelfAura::AutoHideEventHandler -------------------------------------------
 
 // Forwards mouse and gesture events to ShelfLayoutManager for auto-hide.
 // TODO(mash): Add similar event handling support for mash.
 class WmShelfAura::AutoHideEventHandler : public ui::EventHandler {
@@ skipping 20 matching lines @@
   ShelfLayoutManager* shelf_layout_manager_;
   DISALLOW_COPY_AND_ASSIGN(AutoHideEventHandler);
 };
 
 // WmShelfAura -----------------------------------------------------------------
 
 WmShelfAura::WmShelfAura() {}
 
 WmShelfAura::~WmShelfAura() {}
 
-WmDimmerView* WmShelfAura::CreateDimmerView(bool disable_animations_for_test) {
-  return DimmerView::Create(this, disable_animations_for_test);
-}
-
 void WmShelfAura::CreateShelfWidget(WmWindow* root) {
   WmShelf::CreateShelfWidget(root);
   bezel_event_handler_.reset(new ShelfBezelEventHandler(this));
 }
 
 void WmShelfAura::WillDeleteShelfLayoutManager() {
   // Clear event handlers that might forward events to the destroyed instance.
   auto_hide_event_handler_.reset();
   bezel_event_handler_.reset();
   WmShelf::WillDeleteShelfLayoutManager();
 }
 
 void WmShelfAura::WillChangeVisibilityState(ShelfVisibilityState new_state) {
   WmShelf::WillChangeVisibilityState(new_state);
   if (new_state != SHELF_AUTO_HIDE) {
     auto_hide_event_handler_.reset();
   } else if (!auto_hide_event_handler_) {
     auto_hide_event_handler_.reset(
         new AutoHideEventHandler(shelf_layout_manager()));
   }
 }
 
 }  // namespace ash