[Mojo Video Capture] Add test ReceiveFramesFromFakeCaptureDevice

services/video_capture/mock_supported_formats_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_SUPPORTED_FORMATS_RECEIVER_H_
+#define SERVICES_VIDEO_CAPTURE_MOCK_SUPPORTED_FORMATS_RECEIVER_H_
+
+#include "services/video_capture/public/interfaces/video_capture_device_factory.mojom.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace video_capture {
+
+// Mock for receiving device descriptors from a call to
+// mojom::VideoCaptureDeviceFactory::GetSupportedFormats().
+class MockSupportedFormatsReceiver {

[mcasas, 2016/11/09 23:50:29]

If this class is only used inside FakeDeviceTest,
define as a local class of it. Also, it's so tiny that
declaring it as internal class would allow you to
collapse its definition it into:

class MockSupportedFormatsReceiver {
 public:
  MockSupportedFormatsReceiver() = default;
  ~MockSupportedFormatsReceiver() = default;

  MOCK_METHOD1(OnGetSupportedFormatsCallback,
               void(const std::vector<VideoCaptureFormat>&));
 private:
  DISALLOW_COPY_AND_ASSIGN(MockSupportedFormatsReceiver);
};

[chfremer, 2016/11/10 00:28:48]

Done.

+ public:
+  MockSupportedFormatsReceiver();
+  ~MockSupportedFormatsReceiver();
+
+  MOCK_METHOD1(
+      OnGetSupportedFormatsCallback,
+      void(const std::vector<VideoCaptureFormat>&));
+};
+
+}  // namespace video_capture
+
+#endif  // SERVICES_VIDEO_CAPTURE_MOCK_SUPPORTED_FORMATS_RECEIVER_H_