Merge PowerSaveBlockerImpl and PowerSaveBlocker

device/power_save_blocker/power_save_blocker.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       # GN version: //device/power_save_blocker
       'target_name': 'device_power_save_blocker',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
       ],
       'defines': [
         'DEVICE_POWER_SAVE_BLOCKER_IMPLEMENTATION',
       ],
       'sources': [
         # Note: file list duplicated in GN build, other than Android, as gyp
         # for Android isn't supported.
         'power_save_blocker.h',
         'power_save_blocker_chromeos.cc',
-        'power_save_blocker_impl.cc',
-        'power_save_blocker_impl.h',
         'power_save_blocker_mac.cc',
         'power_save_blocker_ozone.cc',
         'power_save_blocker_win.cc',
         'power_save_blocker_x11.cc',
       ],
       'conditions': [
         ['chromeos==1', {
           'sources!': [
             'power_save_blocker_ozone.cc',
             'power_save_blocker_x11.cc',
           ],
           'dependencies': [
             '../../chromeos/chromeos.gyp:chromeos',
             '../../chromeos/chromeos.gyp:power_manager_proto',
           ],
         }],
         ['OS == "mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/CoreFoundation.framework',
               '$(SDKROOT)/System/Library/Frameworks/IOKit.framework',
             ],
           },
         }],
       ],
     },
   ],
 }