Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/cache_storage/cache_storage_cache.cc

 // Copyright 2014 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 "content/browser/cache_storage/cache_storage_cache.h"
 
 #include <string>
 
 #include "base/barrier_closure.h"
 #include "base/files/file_path.h"
 #include "base/guid.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_util.h"
 #include "content/browser/cache_storage/cache_storage.pb.h"
 #include "content/browser/cache_storage/cache_storage_scheduler.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/referrer.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/disk_cache.h"
@@ skipping 1150 matching lines @@
   scoped_ptr<ScopedBackendPtr> backend_ptr(new ScopedBackendPtr());
 
   // Temporary pointer so that backend_ptr can be Pass()'d in Bind below.
   ScopedBackendPtr* backend = backend_ptr.get();
 
   net::CompletionCallback create_cache_callback =
       base::Bind(&CacheStorageCache::CreateBackendDidCreate,
                  weak_ptr_factory_.GetWeakPtr(), callback,
                  base::Passed(backend_ptr.Pass()));
 
-  // TODO(jkarlin): Use the cache task runner that ServiceWorkerCacheCore
+  // TODO(jkarlin): Use the cache MessageLoopProxy that ServiceWorkerCacheCore
   // has for disk caches.
   int rv = disk_cache::CreateCacheBackend(
       cache_type, net::CACHE_BACKEND_SIMPLE, path_, kMaxCacheBytes,
       false, /* force */
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE).get(),
       NULL, backend, create_cache_callback);
   if (rv != net::ERR_IO_PENDING)
     create_cache_callback.Run(rv);
 }
 
@@ skipping 72 matching lines @@
     CacheStorageError error,
     scoped_ptr<Requests> requests) {
   base::WeakPtr<CacheStorageCache> cache = weak_ptr_factory_.GetWeakPtr();
 
   callback.Run(error, requests.Pass());
   if (cache)
     scheduler_->CompleteOperationAndRunNext();
 }
 
 }  // namespace content