[Chromecast] Upgrade to new CMA backend API

chromecast/media/cma/pipeline/frame_status_cb_impl.cc

-// Copyright 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.
-
-#include "chromecast/media/cma/pipeline/frame_status_cb_impl.h"
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
-
-namespace chromecast {
-namespace media {
-
-FrameStatusCBImpl::FrameStatusCBImpl(const CallbackType& cb)
-    : cb_(cb), task_runner_(base::ThreadTaskRunnerHandle::Get()) {}
-
-FrameStatusCBImpl::~FrameStatusCBImpl() {}
-
-void FrameStatusCBImpl::Run(MediaComponentDevice::FrameStatus status) {
-  if (task_runner_->BelongsToCurrentThread()) {
-    if (!cb_.is_null())
-      cb_.Run(status);
-  } else {
-    task_runner_->PostTask(FROM_HERE, base::Bind(cb_, status));
-  }
-}
-
-}  // namespace media
-}  // namespace chromecast