Video Capture Mojo (1.4b): Implement ability to use fake device instance

services/video_capture/mock_device_descriptor_receiver.h

Index: services/video_capture/mock_device_descriptor_receiver.h
diff --git a/services/video_capture/mock_device_descriptor_receiver.h b/services/video_capture/mock_device_descriptor_receiver.h
new file mode 100644
index 0000000000000000000000000000000000000000..cb77279887c783037e6899d7e0ae77214baa8f7b
--- /dev/null
+++ b/services/video_capture/mock_device_descriptor_receiver.h
@@ -0,0 +1,29 @@
+// 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_DEVICE_DESCRIPTOR_RECEIVER_H_
+#define SERVICES_VIDEO_CAPTURE_MOCK_DEVICE_DESCRIPTOR_RECEIVER_H_
+
+#include "services/video_capture/public/interfaces/video_capture_device_factory.mojom.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace video_capture {
+
+class MockDeviceDescriptorReceiver {
+ public:
+  MockDeviceDescriptorReceiver();
+  ~MockDeviceDescriptorReceiver();
+
+  // Use forwarding method to work around gmock not supporting move-only types.
+  void HandleEnumerateDeviceDescriptorsCallback(
+      std::vector<mojom::VideoCaptureDeviceDescriptorPtr> descriptors);
+
+  MOCK_METHOD1(
+      OnEnumerateDeviceDescriptorsCallback,
+      void(const std::vector<mojom::VideoCaptureDeviceDescriptorPtr>&));
+};
+
+}  // namespace video_capture
+
+#endif  // SERVICES_VIDEO_CAPTURE_MOCK_DEVICE_DESCRIPTOR_RECEIVER_H_