[storage] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

storage/browser/blob/blob_url_request_job_factory.cc

 // Copyright (c) 2011 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 "storage/browser/blob/blob_url_request_job_factory.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/strings/string_util.h"
 #include "net/base/request_priority.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_job_factory.h"
 #include "storage/browser/blob/blob_data_handle.h"
 #include "storage/browser/blob/blob_storage_context.h"
 #include "storage/browser/blob/blob_url_request_job.h"
 #include "storage/browser/fileapi/file_system_context.h"
 
 namespace storage {
@@ skipping 23 matching lines @@
 // static
 void BlobProtocolHandler::SetRequestedBlobDataHandle(
     net::URLRequest* request,
     scoped_ptr<BlobDataHandle> blob_data_handle) {
   request->SetUserData(&kUserDataKey, blob_data_handle.release());
 }
 
 BlobProtocolHandler::BlobProtocolHandler(
     BlobStorageContext* context,
     storage::FileSystemContext* file_system_context,
-    const scoped_refptr<base::MessageLoopProxy>& loop_proxy)
-    : file_system_context_(file_system_context), file_loop_proxy_(loop_proxy) {
+    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
+    : file_system_context_(file_system_context),
+      file_task_runner_(task_runner) {
   if (context)
     context_ = context->AsWeakPtr();
 }
 
 BlobProtocolHandler::~BlobProtocolHandler() {
 }
 
 net::URLRequestJob* BlobProtocolHandler::MaybeCreateJob(
     net::URLRequest* request, net::NetworkDelegate* network_delegate) const {
   return new storage::BlobURLRequestJob(request,
                                         network_delegate,
                                         LookupBlobData(request),
                                         file_system_context_.get(),
-                                        file_loop_proxy_.get());
+                                        file_task_runner_.get());
 }
 
 scoped_ptr<BlobDataSnapshot> BlobProtocolHandler::LookupBlobData(
     net::URLRequest* request) const {
   BlobDataHandle* blob_data_handle = GetRequestedBlobDataHandle(request);
   if (blob_data_handle)
     return blob_data_handle->CreateSnapshot().Pass();
   if (!context_.get())
     return NULL;
 
   // Support looking up based on uuid, the FeedbackExtensionAPI relies on this.
   // TODO(michaeln): Replace this use case and others like it with a BlobReader
   // impl that does not depend on urlfetching to perform this function.
   const std::string kPrefix("blob:uuid/");
   if (!StartsWithASCII(request->url().spec(), kPrefix, true))
     return NULL;
   std::string uuid = request->url().spec().substr(kPrefix.length());
   scoped_ptr<BlobDataHandle> handle = context_->GetBlobDataFromUUID(uuid);
   scoped_ptr<BlobDataSnapshot> snapshot;
   if (handle) {
     snapshot = handle->CreateSnapshot().Pass();
     SetRequestedBlobDataHandle(request, handle.Pass());
   }
   return snapshot.Pass();
 }
 
 }  // namespace storage