Add RunCallback to invoke a callback parameter in unittests.

media/media.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the PulseAudio library.
     'use_pulseaudio%': 0,
     # Override to dynamically link the cras (ChromeOS audio) library.
@@ skipping 605 matching lines @@
         'audio/win/audio_unified_win_unittest.cc',
         'audio/win/core_audio_util_win_unittest.cc',
         'base/audio_bus_unittest.cc',
         'base/audio_fifo_unittest.cc',
         'base/audio_pull_fifo_unittest.cc',
         'base/audio_renderer_mixer_input_unittest.cc',
         'base/audio_renderer_mixer_unittest.cc',
         'base/bit_reader_unittest.cc',
         'base/bind_to_loop_unittest.cc',
         'base/buffers_unittest.cc',
+        'base/callback_util_unittest.cc',
         'base/channel_mixer_unittest.cc',
         'base/clock_unittest.cc',
         'base/data_buffer_unittest.cc',
         'base/decoder_buffer_unittest.cc',
         'base/djb2_unittest.cc',
         'base/filter_collection_unittest.cc',
         'base/multi_channel_resampler_unittest.cc',
         'base/pipeline_unittest.cc',
         'base/ranges_unittest.cc',
         'base/run_all_unittests.cc',
@@ skipping 133 matching lines @@
         'media',
         '../base/base.gyp:base',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
       ],
       'sources': [
         'audio/mock_audio_manager.cc',
         'audio/mock_audio_manager.h',
         'audio/test_audio_input_controller_factory.cc',
         'audio/test_audio_input_controller_factory.h',
+        'base/callback_util.h',
         'base/fake_audio_render_callback.cc',
         'base/fake_audio_render_callback.h',
         'base/mock_audio_renderer_sink.cc',
         'base/mock_audio_renderer_sink.h',
         'base/mock_callback.cc',
         'base/mock_callback.h',
         'base/mock_data_source_host.cc',
         'base/mock_data_source_host.h',
         'base/mock_demuxer_host.cc',
         'base/mock_demuxer_host.h',
@@ skipping 527 matching lines @@
             'media',
           ],
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
         },
       ],
     }]
   ],
 }