[media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

media/base/bind_to_current_loop.h

 // Copyright (c) 2015 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.
 
 #ifndef MEDIA_BASE_BIND_TO_CURRENT_LOOP_H_
 #define MEDIA_BASE_BIND_TO_CURRENT_LOOP_H_
 
 #include "base/bind.h"
 #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
 // callback such as base::Bind(&A::AMethod, a) to |b|, but needs to ensure that
 // when |b| executes the callback, it does so on |a|'s current MessageLoop.
 //
 // Typical usage: request to be called back on the current thread:
 // other->StartAsyncProcessAndCallMeBack(
 //    media::BindToCurrentLoop(base::Bind(&MyClass::MyMethod, this)));
 //
@@ skipping 32 matching lines @@
                           base::Bind(cb, TrampolineForward(args)...));
   }
 };
 
 }  // namespace internal
 
 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
 
 #endif  // MEDIA_BASE_BIND_TO_CURRENT_LOOP_H_