Removing gpu::SyncToken usage from video capture pipeline, part 1.

content/browser/renderer_host/media/video_capture_host.h

 // Copyright (c) 2012 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.
 //
 // VideoCaptureHost serves video capture related messages from
 // VideoCaptureMessageFilter which lives inside the render process.
 //
 // This class is owned by RenderProcessHostImpl, and instantiated on UI
 // thread, but all other operations and method calls happen on IO thread.
 //
@@ skipping 100 matching lines @@
              const media::VideoCaptureParams& params,
              mojom::VideoCaptureObserverPtr observer) override;
   void Stop(int32_t device_id) override;
   void Pause(int32_t device_id) override;
   void Resume(int32_t device_id,
               int32_t session_id,
               const media::VideoCaptureParams& params) override;
   void RequestRefreshFrame(int32_t device_id) override;
   void ReleaseBuffer(int32_t device_id,
                      int32_t buffer_id,
-                     const gpu::SyncToken& sync_token,
                      double consumer_resource_utilization) override;
   void GetDeviceSupportedFormats(
       int32_t device_id,
       int32_t session_id,
       const GetDeviceSupportedFormatsCallback& callback) override;
   void GetDeviceFormatsInUse(
       int32_t device_id,
       int32_t session_id,
       const GetDeviceFormatsInUseCallback& callback) override;
 
@@ skipping 17 matching lines @@
   // VideoCaptureObservers map, each one is used and should be valid between
   // Start() and the corresponding Stop().
   std::map<int32_t, mojom::VideoCaptureObserverPtr> device_id_to_observer_map_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_