Pass delay and timestamp to AudioSourceCallback::OnMoreData.

media/audio/alsa/alsa_output.cc

Index: media/audio/alsa/alsa_output.cc
diff --git a/media/audio/alsa/alsa_output.cc b/media/audio/alsa/alsa_output.cc
index c127fb4c2e93a9c6bfd000e41b9717bd181681e1..eead7dedf1c9e7618f47a6a343f43ff6f407be67 100644
--- a/media/audio/alsa/alsa_output.cc
+++ b/media/audio/alsa/alsa_output.cc
@@ -124,7 +124,7 @@ std::ostream& operator<<(std::ostream& os,
     case AlsaPcmOutputStream::kIsClosed:
       os << "kIsClosed";
       break;
-  };
+  }
   return os;
 }
 
@@ -783,8 +783,10 @@ int AlsaPcmOutputStream::RunDataCallback(AudioBus* audio_bus,
                                          uint32_t total_bytes_delay) {
   TRACE_EVENT0("audio", "AlsaPcmOutputStream::RunDataCallback");
 
-  if (source_callback_)
-    return source_callback_->OnMoreData(audio_bus, total_bytes_delay, 0);
+  if (source_callback_) {
+    return source_callback_->OnMoreData(audio_bus, total_bytes_delay,
+                                        base::TimeDelta(), 0);
+  }
 
   return 0;
 }