[media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

media/base/bind_to_current_loop.h

Index: media/base/bind_to_current_loop.h
diff --git a/media/base/bind_to_current_loop.h b/media/base/bind_to_current_loop.h
index cb3e28d4839641f3745684fc7757f87c3aa4cba9..c9eda2ac3f8e50c2fb3f0172c6b6baa1349047ae 100644
--- a/media/base/bind_to_current_loop.h
+++ b/media/base/bind_to_current_loop.h
@@ -9,6 +9,7 @@
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 
 // This is a helper utility for base::Bind()ing callbacks to the current
 // MessageLoop. The typical use is when |a| (of class |A|) wants to hand a
@@ -61,7 +62,7 @@ template<typename T>
 static base::Callback<T> BindToCurrentLoop(
     const base::Callback<T>& cb) {
   return base::Bind(&internal::TrampolineHelper<T>::Run,
-                    base::MessageLoopProxy::current(), cb);
+                    base::ThreadTaskRunnerHandle::Get(), cb);
 }
 
 }  // namespace media