Reland: Use webrtc::VideoFrame timestamp in RTCVideoEncoder

media/gpu/android_video_encode_accelerator.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/gpu/android_video_encode_accelerator.h"
 
 #include <memory>
 #include <set>
 #include <tuple>
 
@@ skipping 410 matching lines @@
                                               size);
   RETURN_ON_FAILURE(status == MEDIA_CODEC_OK, "CopyFromOutputBuffer failed",
                     kPlatformFailureError);
   media_codec_->ReleaseOutputBuffer(buf_index, false);
   --num_buffers_at_codec_;
 
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       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