Reland of Add arraysize to rtc_base_approved. Remove dependency of audio_device on rtc_base.

webrtc/modules/audio_device/audio_device.gypi

 # Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'targets': [
@@ skipping 155 matching lines @@
                   ],
                   'link_settings': {
                     'libraries': [
                       '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
                       '$(SDKROOT)/System/Library/Frameworks/CoreAudio.framework',
                     ],
                   },
                 }],
                 ['OS=="ios"', {
                   'dependencies': [
+                    '<(webrtc_root)/base/base.gyp:rtc_base',
                     '<(webrtc_root)/sdk/sdk.gyp:rtc_sdk_common_objc',
                   ],
                   'export_dependent_settings': [
                     '<(webrtc_root)/sdk/sdk.gyp:rtc_sdk_common_objc',
                   ],
                   'sources': [
                     'ios/audio_device_ios.h',
                     'ios/audio_device_ios.mm',
                     'ios/audio_device_not_implemented_ios.mm',
                     'ios/audio_session_observer.h',
@@ skipping 87 matching lines @@
           'sources': [
             'test/audio_device_test_api.cc',
             'test/audio_device_test_defines.h',
           ],
         },
       ], # targets
     }], # include_tests==1 and OS!=ios
   ],
 }