[Mojo Video Capture] Adapt video_capture service to refactored video capture stack

services/video_capture/test/service_unittest.cc

 // 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.
 
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "base/test/mock_callback.h"
 #include "services/video_capture/public/interfaces/device_factory.mojom.h"
 #include "services/video_capture/test/service_test.h"
 
 using testing::Exactly;
 using testing::_;
 using testing::Invoke;
 using testing::InvokeWithoutArgs;
 
 namespace video_capture {
 
 // This alias ensures test output is easily attributed to this service's tests.
 // TODO(rockot/chfremer): Consider just renaming the type.
 using VideoCaptureServiceTest = ServiceTest;
 
 // Tests that an answer arrives from the service when calling
 // GetDeviceInfos().
-TEST_F(VideoCaptureServiceTest, DISABLED_GetDeviceInfosCallbackArrives) {
+TEST_F(VideoCaptureServiceTest, GetDeviceInfosCallbackArrives) {
   base::RunLoop wait_loop;
   EXPECT_CALL(device_info_receiver_, Run(_))
       .Times(Exactly(1))
       .WillOnce(InvokeWithoutArgs([&wait_loop]() { wait_loop.Quit(); }));
 
   factory_->GetDeviceInfos(device_info_receiver_.Get());
   wait_loop.Run();
 }
 
-TEST_F(VideoCaptureServiceTest, DISABLED_FakeDeviceFactoryEnumeratesOneDevice) {
+TEST_F(VideoCaptureServiceTest, FakeDeviceFactoryEnumeratesOneDevice) {
   base::RunLoop wait_loop;
   size_t num_devices_enumerated = 0;
   EXPECT_CALL(device_info_receiver_, Run(_))
       .Times(Exactly(1))
       .WillOnce(
           Invoke([&wait_loop, &num_devices_enumerated](
                      const std::vector<media::VideoCaptureDeviceInfo>& infos) {
             num_devices_enumerated = infos.size();
             wait_loop.Quit();
           }));
 
   factory_->GetDeviceInfos(device_info_receiver_.Get());
   wait_loop.Run();
   ASSERT_EQ(1u, num_devices_enumerated);
 }
 
 // Tests that VideoCaptureDeviceFactory::CreateDeviceProxy() returns an error
 // code when trying to create a device for an invalid descriptor.
-TEST_F(VideoCaptureServiceTest,
-       DISABLED_ErrorCodeOnCreateDeviceForInvalidDescriptor) {
+TEST_F(VideoCaptureServiceTest, ErrorCodeOnCreateDeviceForInvalidDescriptor) {
   const std::string invalid_device_id = "invalid";
   base::RunLoop wait_loop;
   mojom::DevicePtr fake_device_proxy;
   base::MockCallback<mojom::DeviceFactory::CreateDeviceCallback>
       create_device_proxy_callback;
   EXPECT_CALL(create_device_proxy_callback,
               Run(mojom::DeviceAccessResultCode::ERROR_DEVICE_NOT_FOUND))
       .Times(1)
       .WillOnce(InvokeWithoutArgs([&wait_loop]() { wait_loop.Quit(); }));
+  factory_->GetDeviceInfos(device_info_receiver_.Get());
   factory_->CreateDevice(invalid_device_id,
                          mojo::MakeRequest(&fake_device_proxy),
                          create_device_proxy_callback.Get());
   wait_loop.Run();
 }
 
 }  // namespace video_capture