Cast:Adding cast_transport_config and cleaning up

media/cast/video_receiver/video_receiver_unittest.cc

Index: media/cast/video_receiver/video_receiver_unittest.cc
diff --git a/media/cast/video_receiver/video_receiver_unittest.cc b/media/cast/video_receiver/video_receiver_unittest.cc
index e13f0f59dceeff8b2c3f0975da5b49bd0d8f0381..079f49e7430c8cd584c1cd9a853fc3651b50bcb4 100644
--- a/media/cast/video_receiver/video_receiver_unittest.cc
+++ b/media/cast/video_receiver/video_receiver_unittest.cc
@@ -35,10 +35,10 @@ class TestVideoReceiverCallback :
     ++num_called_;
   }
 
-  void FrameToDecode(scoped_ptr<EncodedVideoFrame> video_frame,
+  void FrameToDecode(scoped_ptr<transport::EncodedVideoFrame> video_frame,
       const base::TimeTicks& render_time) {
     EXPECT_TRUE(video_frame->key_frame);
-    EXPECT_EQ(kVp8, video_frame->codec);
+    EXPECT_EQ(transport::kVp8, video_frame->codec);
     ++num_called_;
   }
 
@@ -69,7 +69,7 @@ class VideoReceiverTest : public ::testing::Test {
  protected:
   VideoReceiverTest() {
     // Configure to use vp8 software implementation.
-    config_.codec = kVp8;
+    config_.codec = transport::kVp8;
     config_.use_external_decoder = false;
     task_runner_ = new test::FakeTaskRunner(&testing_clock_);
     cast_environment_ = new CastEnvironment(&testing_clock_, task_runner_,