Add stub MediaCodecAudioDecoder

media/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/buildflag_header.gni")
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
@@ skipping 376 matching lines @@
       sources -= [
         "filters/ffmpeg_video_decoder.cc",
         "filters/ffmpeg_video_decoder.h",
       ]
     }
     sources += [
       "capture/video/android/video_capture_device_android.cc",
       "capture/video/android/video_capture_device_android.h",
       "capture/video/android/video_capture_device_factory_android.cc",
       "capture/video/android/video_capture_device_factory_android.h",
+      "filters/android/media_codec_audio_decoder.cc",
+      "filters/android/media_codec_audio_decoder.h",
     ]
     sources -= [
       "filters/decrypting_audio_decoder.cc",
       "filters/decrypting_audio_decoder.h",
       "filters/decrypting_video_decoder.cc",
       "filters/decrypting_video_decoder.h",
     ]
     deps += [
       "//media/base/android",
       "//media/base/android:media_jni_headers",
@@ skipping 504 matching lines @@
       "//media/base:test_support",
       "//media/test:pipeline_integration_tests",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/ffmpeg",
       "//ui/gfx:test_support",
       "//ui/gfx/geometry",
     ]
   }
 }