[Mojo Video Capture] Implement a VideoCaptureProvider that uses the video capture service

content/browser/renderer_host/media/mock_video_capture_provider.h

 // Copyright 2017 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_MOCK_VIDEO_CAPTURE_PROVIDER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MOCK_VIDEO_CAPTURE_PROVIDER_H_
 
 #include "content/browser/renderer_host/media/video_capture_provider.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace content {
 
 class MockVideoCaptureProvider : public VideoCaptureProvider {
  public:
   MockVideoCaptureProvider();
   ~MockVideoCaptureProvider() override;
 
+  MOCK_METHOD0(Uninitialize, void());
   MOCK_METHOD1(GetDeviceInfosAsync,
                void(const base::Callback<
                     void(const std::vector<media::VideoCaptureDeviceInfo>&)>&
                         result_callback));
 
   MOCK_METHOD0(CreateDeviceLauncher,
                std::unique_ptr<VideoCaptureDeviceLauncher>());
 };
 
 class MockVideoCaptureDeviceLauncher : public VideoCaptureDeviceLauncher {
@@ skipping 63 matching lines @@
 
   void SetDesktopCaptureWindowIdAsync(gfx::NativeViewId window_id,
                                       base::OnceClosure done_cb) override {
     DoSetDesktopCaptureWindowId(window_id, &done_cb);
   }
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MOCK_VIDEO_CAPTURE_PROVIDER_H_