[Mojo Video Capture] Simplify API and some cleanups

services/video_capture/mock_device_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/run_loop.h"
-#include "services/video_capture/mock_device_video_capture_service_test.h"
+#include "services/video_capture/mock_device_test.h"
 
 using testing::_;
-using testing::InvokeWithoutArgs;
+using testing::Invoke;
 
 namespace video_capture {
 
 // Tests that the service stops the capture device when the client closes the
 // connection to the device proxy.
-TEST_F(MockDeviceVideoCaptureServiceTest,
-       DeviceIsStoppedWhenDiscardingDeviceProxy) {
+TEST_F(MockDeviceTest, DeviceIsStoppedWhenDiscardingDeviceProxy) {
   base::RunLoop wait_loop;
 
   EXPECT_CALL(*mock_device_, AllocateAndStartPtr(_));
   EXPECT_CALL(*mock_device_, StopAndDeAllocate())
-      .WillOnce(InvokeWithoutArgs([&wait_loop]() { wait_loop.Quit(); }));
+      .WillOnce(Invoke([&wait_loop]() { wait_loop.Quit(); }));
 
-  device_proxy_->Start(requested_format_,
-                       media::RESOLUTION_POLICY_FIXED_RESOLUTION,
-                       media::PowerLineFrequency::FREQUENCY_DEFAULT,
+  device_proxy_->Start(requested_settings_,
                        std::move(mock_receiver_proxy_));
   device_proxy_.reset();
 
   wait_loop.Run();
 }
 
 // Tests that the service stops the capture device when the client closes the
 // connection to the client proxy it provided to the service.
-TEST_F(MockDeviceVideoCaptureServiceTest,
-       DeviceIsStoppedWhenDiscardingDeviceClient) {
+TEST_F(MockDeviceTest, DeviceIsStoppedWhenDiscardingDeviceClient) {
   base::RunLoop wait_loop;
 
   EXPECT_CALL(*mock_device_, AllocateAndStartPtr(_));
   EXPECT_CALL(*mock_device_, StopAndDeAllocate())
-      .WillOnce(InvokeWithoutArgs([&wait_loop]() { wait_loop.Quit(); }));
+      .WillOnce(Invoke([&wait_loop]() { wait_loop.Quit(); }));
 
-  device_proxy_->Start(requested_format_,
-                       media::RESOLUTION_POLICY_FIXED_RESOLUTION,
-                       media::PowerLineFrequency::FREQUENCY_DEFAULT,
+  device_proxy_->Start(requested_settings_,
                        std::move(mock_receiver_proxy_));
   mock_receiver_.reset();
 
   wait_loop.Run();
 }
 
 }  // namespace video_capture