Let clients interact with VideoCaptureDeviceClient instead of VideoCaptureDevice

services/video_capture/mock_video_frame_receiver.h

+// 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.
+
+#ifndef SERVICES_VIDEO_CAPTURE_MOCK_VIDEO_FRAME_RECEIVER_H_
+#define SERVICES_VIDEO_CAPTURE_MOCK_VIDEO_FRAME_RECEIVER_H_
+
+#include "media/mojo/interfaces/media_types.mojom.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "services/video_capture/public/interfaces/video_frame_receiver.mojom.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace video_capture {
+
+class MockVideoFrameReceiver : public mojom::VideoFrameReceiver {
+ public:
+  MockVideoFrameReceiver(mojom::VideoFrameReceiverRequest request);
+  ~MockVideoFrameReceiver() override;
+
+  // Use forwarding method to work around gmock not supporting move-only types.
+  void OnIncomingCapturedVideoFrame(media::mojom::VideoFramePtr frame) override;
+
+  MOCK_METHOD1(OnIncomingCapturedVideoFramePtr,
+               void(const media::mojom::VideoFramePtr* frame));
+  MOCK_METHOD0(OnError, void());
+  MOCK_METHOD1(OnLog, void(const std::string&));
+  MOCK_METHOD1(OnBufferDestroyed, void(int32_t));
+
+ private:
+  const mojo::Binding<mojom::VideoFrameReceiver> binding_;
+};
+
+}  // namespace video_capture
+
+#endif  // SERVICES_VIDEO_CAPTURE_MOCK_VIDEO_FRAME_RECEIVER_H_