Get AcceleratorControllerTest working with mash

ash/accelerators/accelerator_controller_unittest.cc

 // 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.
 
 #include "ash/common/accelerators/accelerator_controller.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/accelerators/accelerator_table.h"
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
@@ skipping 187 matching lines @@
 }
 
 }  // namespace
 
 class AcceleratorControllerTest : public test::AshTestBase {
  public:
   AcceleratorControllerTest() {}
   ~AcceleratorControllerTest() override {}
 
  protected:
-  void EnableInternalDisplay() {
-    test::DisplayManagerTestApi().SetFirstDisplayAsInternalDisplay();
-  }
-
   static AcceleratorController* GetController();
 
   static bool ProcessInController(const ui::Accelerator& accelerator) {
     if (accelerator.type() == ui::ET_KEY_RELEASED) {
       // If the |accelerator| should trigger on release, then we store the
       // pressed version of it first in history then the released one to
       // simulate what happens in reality.
       ui::Accelerator pressed_accelerator = accelerator;
       pressed_accelerator.set_type(ui::ET_KEY_PRESSED);
       GetController()->accelerator_history()->StoreCurrentAccelerator(
@@ skipping 1189 matching lines @@
     EXPECT_TRUE(IsMessageCenterEmpty());
 
     // If the action is LOCK_SCREEN, we must reset the state by unlocking the
     // screen before we proceed testing the rest of accelerators.
     ResetStateIfNeeded();
   }
 }
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace ash