RTC Video Encoder: Use capturer timestamp

media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc

Index: media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc
diff --git a/media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc b/media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc
index d856673dba466376cb63ef6789482a558fe5e56d..69c242c05e749408c26dd088562544805f2e80eb 100644
--- a/media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc
+++ b/media/gpu/ipc/client/gpu_video_encode_accelerator_host.cc
@@ -302,14 +302,16 @@ void GpuVideoEncodeAcceleratorHost::OnNotifyInputDone(int32_t frame_id) {
 void GpuVideoEncodeAcceleratorHost::OnBitstreamBufferReady(
     int32_t bitstream_buffer_id,
     uint32_t payload_size,
-    bool key_frame) {
+    bool key_frame,
+    base::TimeDelta timestamp) {
   DCHECK(CalledOnValidThread());
   DVLOG(3) << "OnBitstreamBufferReady(): "
               "bitstream_buffer_id="
            << bitstream_buffer_id << ", payload_size=" << payload_size
            << ", key_frame=" << key_frame;
   if (client_)
-    client_->BitstreamBufferReady(bitstream_buffer_id, payload_size, key_frame);
+    client_->BitstreamBufferReady(bitstream_buffer_id, payload_size, key_frame,
+                                  timestamp);
 }
 
 void GpuVideoEncodeAcceleratorHost::OnNotifyError(Error error) {