Moves TestVolumeControlDelegate to ash/common/test

ash/test/test_volume_control_delegate.cc

-// Copyright 2014 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/test/test_volume_control_delegate.h"
-
-namespace ash {
-
-TestVolumeControlDelegate::TestVolumeControlDelegate()
-    : handle_volume_mute_count_(0),
-      handle_volume_down_count_(0),
-      handle_volume_up_count_(0) {}
-
-TestVolumeControlDelegate::~TestVolumeControlDelegate() {}
-
-void TestVolumeControlDelegate::HandleVolumeMute(
-    const ui::Accelerator& accelerator) {
-  ++handle_volume_mute_count_;
-  last_accelerator_ = accelerator;
-}
-
-void TestVolumeControlDelegate::HandleVolumeDown(
-    const ui::Accelerator& accelerator) {
-  ++handle_volume_down_count_;
-  last_accelerator_ = accelerator;
-}
-
-void TestVolumeControlDelegate::HandleVolumeUp(
-    const ui::Accelerator& accelerator) {
-  ++handle_volume_up_count_;
-  last_accelerator_ = accelerator;
-}
-
-}  // namespace ash