[Mojo Video Capture] Add test ReceiveFramesFromFakeCaptureDevice

services/video_capture/fake_device_test.h

Index: services/video_capture/fake_device_test.h
diff --git a/services/video_capture/fake_device_test.h b/services/video_capture/fake_device_test.h
index 819e3b6a69754cbcc751c2c2052afdc9d9519a7b..7253d15be4f4341c9f9192c94956fcdb2e4d39e3 100644
--- a/services/video_capture/fake_device_test.h
+++ b/services/video_capture/fake_device_test.h
@@ -6,6 +6,7 @@
 #define SERVICES_VIDEO_CAPTURE_FAKE_DEVICE_TEST_H_
 
 #include "services/video_capture/fake_device_descriptor_test.h"
+#include "services/video_capture/mock_supported_formats_receiver.h"
 
 namespace video_capture {
 
@@ -19,6 +20,9 @@ class FakeDeviceTest : public FakeDeviceDescriptorTest {
   void SetUp() override;
 
  protected:
+  MockSupportedFormatsReceiver supported_formats_receiver_;
+  VideoCaptureFormat fake_device_first_supported_format_;
+  VideoCaptureSettings requestable_settings_;
   mojom::VideoCaptureDeviceProxyPtr fake_device_proxy_;
 };