Remove webrtc::DesktopCapturer::Callback::CreateSharedMemory() overrides.

remoting/protocol/webrtc_frame_scheduler.cc

 // Copyright 2016 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 "remoting/protocol/webrtc_frame_scheduler.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "remoting/base/constants.h"
@@ skipping 66 matching lines @@
   key_frame_request_ = true;
 }
 
 bool WebRtcFrameScheduler::ClearAndGetKeyFrameRequest() {
   base::AutoLock lock(lock_);
   bool key_frame_request = key_frame_request_;
   key_frame_request_ = false;
   return key_frame_request;
 }
 
-webrtc::SharedMemory* WebRtcFrameScheduler::CreateSharedMemory(size_t size) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return nullptr;
-}
-
 void WebRtcFrameScheduler::OnCaptureCompleted(webrtc::DesktopFrame* frame) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   VLOG(1) << "Capture overhead "
           << (base::TimeTicks::Now() - last_capture_ticks_).InMilliseconds();
   capture_pending_ = false;
 
   std::unique_ptr<webrtc::DesktopFrame> owned_frame(frame);
 
   if (encode_pending_) {
@@ skipping 70 matching lines @@
   // This gets resolved through a PLI request.
   webrtc_transport_->video_encoder_factory()->SendEncodedFrame(
       capture_timestamp_ms, std::move(packet));
 
   VLOG(1) << "Send duration "
           << (base::TimeTicks::Now() - current).InMilliseconds();
 }
 
 }  // namespace protocol
 }  // namespace remoting