Pass delay and timestamp to AudioSourceCallback::OnMoreData.

media/audio/pulse/pulse_util.h

Index: media/audio/pulse/pulse_util.h
diff --git a/media/audio/pulse/pulse_util.h b/media/audio/pulse/pulse_util.h
index b8e5cdcda4c606eaef98770e1507bbff99522855..0dce99048b9d63e0bf6384feb7777dec03015374 100644
--- a/media/audio/pulse/pulse_util.h
+++ b/media/audio/pulse/pulse_util.h
@@ -8,6 +8,7 @@
 #include <pulse/pulseaudio.h>
 
 #include "base/macros.h"
+#include "base/time/time.h"
 #include "media/audio/audio_device_name.h"
 #include "media/base/channel_layout.h"
 
@@ -45,6 +46,8 @@ pa_channel_map ChannelLayoutToPAChannelMap(ChannelLayout channel_layout);
 void WaitForOperationCompletion(pa_threaded_mainloop* mainloop,
                                 pa_operation* operation);
 
+base::TimeDelta GetHardwareLatency(pa_stream* stream);
+
 int GetHardwareLatencyInBytes(pa_stream* stream,
                               int sample_rate,
                               int bytes_per_frame);