Add a unified audio I/O backend for ChromeOS.

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 cras (ChromeOS audio) library.
     'use_cras%': 0,
     'conditions': [
@@ skipping 81 matching lines @@
         'audio/audio_output_proxy.h',
         'audio/audio_output_resampler.cc',
         'audio/audio_output_resampler.h',
         'audio/audio_source_diverter.h',
         'audio/audio_util.cc',
         'audio/audio_util.h',
         'audio/cras/audio_manager_cras.cc',
         'audio/cras/audio_manager_cras.h',
         'audio/cras/cras_input.cc',
         'audio/cras/cras_input.h',
-        'audio/cras/cras_output.cc',
-        'audio/cras/cras_output.h',
+        'audio/cras/cras_unified.cc',
+        'audio/cras/cras_unified.h',
         'audio/cross_process_notification.cc',
         'audio/cross_process_notification.h',
         'audio/cross_process_notification_posix.cc',
         'audio/cross_process_notification_win.cc',
         'audio/fake_audio_consumer.cc',
         'audio/fake_audio_consumer.h',
         'audio/fake_audio_input_stream.cc',
         'audio/fake_audio_input_stream.h',
         'audio/fake_audio_output_stream.cc',
         'audio/fake_audio_output_stream.h',
@@ skipping 506 matching lines @@
               },
               'defines': [
                 'USE_CRAS',
               ],
             }, {  # else: use_cras == 0
               'sources!': [
                 'audio/cras/audio_manager_cras.cc',
                 'audio/cras/audio_manager_cras.h',
                 'audio/cras/cras_input.cc',
                 'audio/cras/cras_input.h',
-                'audio/cras/cras_output.cc',
-                'audio/cras/cras_output.h',
+                'audio/cras/cras_unified.cc',
+                'audio/cras/cras_unified.h',
               ],
             }],
           ],
         }],
         ['OS!="linux"', {
           'sources!': [
             'audio/cras/audio_manager_cras.cc',
             'audio/cras/audio_manager_cras.h',
             'audio/cras/cras_input.cc',
             'audio/cras/cras_input.h',
-            'audio/cras/cras_output.cc',
-            'audio/cras/cras_output.h',
+            'audio/cras/cras_unified.cc',
+            'audio/cras/cras_unified.h',
           ],
         }],
         ['os_posix == 1 and OS != "mac" and OS != "ios" and OS != "android" and chromeos != 1', {
           'defines': [
             'USE_PULSEAUDIO',
           ],
           'variables': {
             'generate_stubs_script': '../tools/generate_stubs/generate_stubs.py',
             'extra_header': 'audio/pulse/pulse_stub_header.fragment',
             'sig_files': ['audio/pulse/pulse.sigs'],
@@ skipping 346 matching lines @@
                 'player_android',
               ],
             }],
           ],
         }],
         ['OS == "linux"', {
           'conditions': [
             ['use_cras == 1', {
               'sources': [
                 'audio/cras/cras_input_unittest.cc',
-                'audio/cras/cras_output_unittest.cc',
+                'audio/cras/cras_unified_unittest.cc',
               ],
               'defines': [
                 'USE_CRAS',
               ],
             }],
           ],
         }],
         ['use_alsa==0', {
           'sources!': [
             'audio/linux/alsa_output_unittest.cc',
@@ skipping 600 matching lines @@
           ],
           'sources': [
             'base/simd/sinc_resampler_sse.cc',
             'base/simd/vector_math_sse.cc',
           ],
         }, # end of target media_sse
       ],
     }],
   ],
 }