Cast:Adding cast_transport_config and cleaning up

media/cast/video_sender/video_sender_unittest.cc

Index: media/cast/video_sender/video_sender_unittest.cc
diff --git a/media/cast/video_sender/video_sender_unittest.cc b/media/cast/video_sender/video_sender_unittest.cc
index d12b4f419f3b055aa8a80dd4f4b5c58a1c6021aa..0f0852df6ce83fe6f310a5daa1550d8ba9085535 100644
--- a/media/cast/video_sender/video_sender_unittest.cc
+++ b/media/cast/video_sender/video_sender_unittest.cc
@@ -70,7 +70,7 @@ class VideoSenderTest : public ::testing::Test {
     video_config.min_qp = 0;
     video_config.max_frame_rate = 30;
     video_config.max_number_of_video_buffers_used = 1;
-    video_config.codec = kVp8;
+    video_config.codec = transport::kVp8;
 
     if (external) {
       video_sender_.reset(new PeerVideoSender(cast_environment_,
@@ -86,8 +86,8 @@ class VideoSenderTest : public ::testing::Test {
   virtual void SetUp() {
     task_runner_ = new test::FakeTaskRunner(&testing_clock_);
     cast_environment_ = new CastEnvironment(&testing_clock_, task_runner_,
-       task_runner_, task_runner_, task_runner_, task_runner_,
-       GetDefaultCastLoggingConfig());
+        task_runner_, task_runner_, task_runner_, task_runner_,
+        task_runner_, GetDefaultCastLoggingConfig());
   }
 
   scoped_refptr<media::VideoFrame> GetNewVideoFrame() {