Move AcceleratorController from WmShell to Shell

ash/wm/screen_pinning_controller_unittest.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/wm/screen_pinning_controller.h"
 
 #include <vector>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
+#include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_util.h"
 #include "base/stl_util.h"
 #include "ui/aura/window.h"
 
 namespace ash {
 namespace {
 
 int FindIndex(const std::vector<aura::Window*>& windows,
               const aura::Window* target) {
@@ skipping 128 matching lines @@
   }
 }
 
 TEST_F(ScreenPinningControllerTest, TrustedPinnedWithAccelerator) {
   aura::Window* w1 = CreateTestWindowInShellWithId(0);
   wm::ActivateWindow(w1);
 
   wm::PinWindow(w1, /* trusted */ true);
   EXPECT_TRUE(WmShell::Get()->IsPinned());
 
-  WmShell::Get()->accelerator_controller()->PerformActionIfEnabled(UNPIN);
+  Shell::Get()->accelerator_controller()->PerformActionIfEnabled(UNPIN);
   // The UNPIN accelerator key is disabled for trusted pinned and the window
   // must be still pinned.
   EXPECT_TRUE(WmShell::Get()->IsPinned());
 }
 
 }  // namespace ash