Vanquish the remnants of media::MessageLoopFactory.

media/base/message_loop_factory.cc

-// Copyright (c) 2012 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 "media/base/message_loop_factory.h"
-
-#include "base/threading/thread.h"
-
-namespace media {
-
-MessageLoopFactory::MessageLoopFactory() {}
-
-MessageLoopFactory::~MessageLoopFactory() {
-  for (ThreadList::reverse_iterator it = threads_.rbegin();
-       it != threads_.rend(); ++it) {
-    base::Thread* thread = it->second;
-    thread->Stop();
-    delete thread;
-  }
-  threads_.clear();
-}
-
-scoped_refptr<base::MessageLoopProxy> MessageLoopFactory::GetMessageLoop(
-    Type type) {
-  return GetThread(type)->message_loop_proxy();
-}
-
-base::Thread* MessageLoopFactory::GetThread(Type type) {
-  base::AutoLock auto_lock(lock_);
-  for (ThreadList::iterator it = threads_.begin(); it != threads_.end(); ++it) {
-    if (it->first == type)
-      return it->second;
-  }
-
-  const char* name = NULL;
-  switch (type) {
-    case kPipeline:
-      name = "MediaPipeline";
-      break;
-  }
-
-  base::Thread* thread = new base::Thread(name);
-  CHECK(thread->Start()) << "Failed to start thread: " << name;
-  threads_.push_back(std::make_pair(type, thread));
-  return thread;
-}
-
-}  // namespace media