[Mojo Video Capture] Add test coverage for accelerated jpeg decoding

content/browser/renderer_host/media/video_capture_host.cc

 // 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.
 
 #include "content/browser/renderer_host/media/video_capture_host.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 102 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (controllers_.find(controller_id) == controllers_.end())
     return;
 
   if (base::ContainsKey(device_id_to_observer_map_, controller_id)) {
     device_id_to_observer_map_[controller_id]->OnStateChanged(
         mojom::VideoCaptureState::STARTED);
   }
 }
 
+void VideoCaptureHost::OnStartedUsingGpuDecode(VideoCaptureControllerID id) {}
+
 void VideoCaptureHost::Start(int32_t device_id,
                              int32_t session_id,
                              const media::VideoCaptureParams& params,
                              mojom::VideoCaptureObserverPtr observer) {
   DVLOG(1) << __func__ << " session_id=" << session_id
            << ", device_id=" << device_id << ", format="
            << media::VideoCaptureFormat::ToString(params.requested_format);
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   DCHECK(!base::ContainsKey(device_id_to_observer_map_, device_id));
@@ skipping 190 matching lines @@
   const base::WeakPtr<VideoCaptureController> controller = it->second;
   controllers_.erase(it);
   if (!controller)
     return;
 
   media_stream_manager_->video_capture_manager()->StopCaptureForClient(
       controller.get(), controller_id, this, on_error);
 }
 
 }  // namespace content