Use MessageLoopProxy for network message loop.

remoting/protocol/rtp_video_writer_unittest.cc

Index: remoting/protocol/rtp_video_writer_unittest.cc
diff --git a/remoting/protocol/rtp_video_writer_unittest.cc b/remoting/protocol/rtp_video_writer_unittest.cc
index 118c3005ea6e81f08a00766c36f5083b271d82f6..0fe86e4c583ffd48872af57932581ef6cc2d3e25 100644
--- a/remoting/protocol/rtp_video_writer_unittest.cc
+++ b/remoting/protocol/rtp_video_writer_unittest.cc
@@ -7,6 +7,7 @@
 
 #include "base/bind.h"
 #include "base/message_loop.h"
+#include "base/message_loop_proxy.h"
 #include "base/string_number_conversions.h"
 #include "remoting/base/constants.h"
 #include "remoting/proto/video.pb.h"
@@ -57,6 +58,10 @@ class RtpVideoWriterTest : public testing::Test {
     bool last;
   };
 
+  RtpVideoWriterTest()
+      : writer_(base::MessageLoopProxy::CreateForCurrentThread()) {
+  }
+
   virtual void SetUp() {
     session_.reset(new FakeSession());
     writer_.Init(session_.get(),