Enable high latency audio on Android N+ for basic playback.

media/audio/android/audio_manager_android.cc

Index: media/audio/android/audio_manager_android.cc
diff --git a/media/audio/android/audio_manager_android.cc b/media/audio/android/audio_manager_android.cc
index 502a8cbf8dc84955a99546cfabc3858b164e0e4e..366c97d819f5e128eb16065bde0304a8bc7a9113 100644
--- a/media/audio/android/audio_manager_android.cc
+++ b/media/audio/android/audio_manager_android.cc
@@ -332,8 +332,13 @@ AudioParameters AudioManagerAndroid::GetPreferredOutputStreamParameters(
       channel_layout = input_params.channel_layout();
     }
 
-    buffer_size = GetOptimalOutputFrameSize(
-        sample_rate, ChannelLayoutToChannelCount(channel_layout));
+    // For high latency playback, pass through the requested buffer size.
+    if (input_params.latency_tag() == AudioLatency::LATENCY_PLAYBACK) {
+      buffer_size = input_params.frames_per_buffer();
+    } else {
+      buffer_size = GetOptimalOutputFrameSize(
+          sample_rate, ChannelLayoutToChannelCount(channel_layout));
+    }
   }
 
   int user_buffer_size = GetUserBufferSize();