Reland: Use webrtc::VideoFrame timestamp in RTCVideoEncoder

media/gpu/android_video_encode_accelerator.cc

Index: media/gpu/android_video_encode_accelerator.cc
diff --git a/media/gpu/android_video_encode_accelerator.cc b/media/gpu/android_video_encode_accelerator.cc
index 24237bb971e70b245c76cff366434d9ae22f419b..95c542c08ed28e67e5bdd8795c451cc023c12503 100644
--- a/media/gpu/android_video_encode_accelerator.cc
+++ b/media/gpu/android_video_encode_accelerator.cc
@@ -428,7 +428,7 @@ void AndroidVideoEncodeAccelerator::DequeueOutput() {
       FROM_HERE,
       base::Bind(&VideoEncodeAccelerator::Client::BitstreamBufferReady,
                  client_ptr_factory_->GetWeakPtr(), bitstream_buffer.id(), size,
-                 key_frame, base::Time::Now() - base::Time()));
+                 key_frame, base::TimeDelta()));
 }
 
 }  // namespace media