mash: Migrate [Keyboard]Brightness code to ash/common.

ash/system/chromeos/keyboard_brightness_controller.cc

Index: ash/system/chromeos/keyboard_brightness_controller.cc
diff --git a/ash/system/chromeos/keyboard_brightness_controller.cc b/ash/system/chromeos/keyboard_brightness_controller.cc
deleted file mode 100644
index a5f7fd95531a99391b24ef832dc022d75d71556e..0000000000000000000000000000000000000000
--- a/ash/system/chromeos/keyboard_brightness_controller.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// 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/system/chromeos/keyboard_brightness_controller.h"
-
-#include "ash/common/wm_shell.h"
-#include "chromeos/dbus/dbus_thread_manager.h"
-#include "chromeos/dbus/power_manager_client.h"
-#include "ui/base/accelerators/accelerator.h"
-
-namespace ash {
-
-void KeyboardBrightnessController::HandleKeyboardBrightnessDown(
-    const ui::Accelerator& accelerator) {
-  if (accelerator.key_code() == ui::VKEY_BRIGHTNESS_DOWN) {
-    WmShell::Get()->RecordUserMetricsAction(
-        UMA_ACCEL_KEYBOARD_BRIGHTNESS_DOWN_F6);
-  }
-
-  chromeos::DBusThreadManager::Get()
-      ->GetPowerManagerClient()
-      ->DecreaseKeyboardBrightness();
-}
-
-void KeyboardBrightnessController::HandleKeyboardBrightnessUp(
-    const ui::Accelerator& accelerator) {
-  if (accelerator.key_code() == ui::VKEY_BRIGHTNESS_UP) {
-    WmShell::Get()->RecordUserMetricsAction(
-        UMA_ACCEL_KEYBOARD_BRIGHTNESS_UP_F7);
-  }
-
-  chromeos::DBusThreadManager::Get()
-      ->GetPowerManagerClient()
-      ->IncreaseKeyboardBrightness();
-}
-
-}  // namespace ash