Reland 153623004: Remove the unified IO code on the browser

media/media.gyp

Index: media/media.gyp
diff --git a/media/media.gyp b/media/media.gyp
index 6638f5b8a6df5fe914b6d8c4496b4fa742408277..6790d2814a7ead05d957c732f5c51f1e6eb6f40a 100644
--- a/media/media.gyp
+++ b/media/media.gyp
@@ -131,8 +131,6 @@
         'audio/fake_audio_output_stream.cc',
         'audio/fake_audio_output_stream.h',
         'audio/linux/audio_manager_linux.cc',
-        'audio/mac/aggregate_device_manager.cc',
-        'audio/mac/aggregate_device_manager.h',
         'audio/mac/audio_auhal_mac.cc',
         'audio/mac/audio_auhal_mac.h',
         'audio/mac/audio_device_listener_mac.cc',
@@ -145,10 +143,6 @@
         'audio/mac/audio_low_latency_output_mac.h',
         'audio/mac/audio_manager_mac.cc',
         'audio/mac/audio_manager_mac.h',
-        'audio/mac/audio_synchronized_mac.cc',
-        'audio/mac/audio_synchronized_mac.h',
-        'audio/mac/audio_unified_mac.cc',
-        'audio/mac/audio_unified_mac.h',
         'audio/null_audio_sink.cc',
         'audio/null_audio_sink.h',
         'audio/openbsd/audio_manager_openbsd.cc',
@@ -159,8 +153,6 @@
         'audio/pulse/pulse_input.h',
         'audio/pulse/pulse_output.cc',
         'audio/pulse/pulse_output.h',
-        'audio/pulse/pulse_unified.cc',
-        'audio/pulse/pulse_unified.h',
         'audio/pulse/pulse_util.cc',
         'audio/pulse/pulse_util.h',
         'audio/sample_rates.cc',
@@ -187,8 +179,6 @@
         'audio/win/audio_low_latency_output_win.h',
         'audio/win/audio_manager_win.cc',
         'audio/win/audio_manager_win.h',
-        'audio/win/audio_unified_win.cc',
-        'audio/win/audio_unified_win.h',
         'audio/win/avrt_wrapper_win.cc',
         'audio/win/avrt_wrapper_win.h',
         'audio/win/core_audio_util_win.cc',
@@ -776,8 +766,6 @@
             'audio/pulse/pulse_input.h',
             'audio/pulse/pulse_output.cc',
             'audio/pulse/pulse_output.h',
-            'audio/pulse/pulse_unified.cc',
-            'audio/pulse/pulse_unified.h',
             'audio/pulse/pulse_util.cc',
             'audio/pulse/pulse_util.h',
           ],
@@ -952,7 +940,6 @@
         'audio/win/audio_low_latency_input_win_unittest.cc',
         'audio/win/audio_low_latency_output_win_unittest.cc',
         'audio/win/audio_output_win_unittest.cc',
-        'audio/win/audio_unified_win_unittest.cc',
         'audio/win/core_audio_util_win_unittest.cc',
         'base/android/media_codec_bridge_unittest.cc',
         'base/android/media_source_player_unittest.cc',