Cleanup of passing GpuMemoryBuffer backed video frames

content/renderer/media/gpu/rtc_video_encoder.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 "content/renderer/media/gpu/rtc_video_encoder.h"
 
 #include <string.h>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 547 matching lines @@
     SignalAsyncWaiter(WEBRTC_VIDEO_CODEC_ERROR);
     return;
   }
 
   const int index = input_buffers_free_.back();
   bool requires_copy = false;
   scoped_refptr<media::VideoFrame> frame;
   if (next_frame->video_frame_buffer()->native_handle()) {
     frame = static_cast<media::VideoFrame*>(
         next_frame->video_frame_buffer()->native_handle());
-    requires_copy = RequiresSizeChange(frame);
+    requires_copy = RequiresSizeChange(frame) ||
+                    frame->storage_type() != media::VideoFrame::STORAGE_SHMEM;
   } else {
     requires_copy = true;
   }
 
   if (requires_copy) {
     const base::TimeDelta timestamp =
         frame ? frame->timestamp()
               : base::TimeDelta::FromMilliseconds(next_frame->ntp_time_ms());
     base::SharedMemory* input_buffer = input_buffers_[index];
     frame = media::VideoFrame::WrapExternalSharedMemory(
@@ skipping 301 matching lines @@
   UMA_HISTOGRAM_BOOLEAN("Media.RTCVideoEncoderInitEncodeSuccess",
                         init_retval == WEBRTC_VIDEO_CODEC_OK);
   if (init_retval == WEBRTC_VIDEO_CODEC_OK) {
     UMA_HISTOGRAM_ENUMERATION("Media.RTCVideoEncoderProfile",
                               profile,
                               media::VIDEO_CODEC_PROFILE_MAX + 1);
   }
 }
 
 }  // namespace content