Remove WorkerPool dependency from URLRequestFileJob.

content/shell/shell_url_request_context_getter.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 "content/shell/shell_url_request_context_getter.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/worker_pool.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "content/shell/common/shell_switches.h"
 #include "content/shell/shell_network_delegate.h"
 #include "net/base/cache_type.h"
 #include "net/cert/cert_verifier.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/dns/host_resolver.h"
@@ skipping 178 matching lines @@
         new net::URLRequestJobFactoryImpl());
     // Keep ProtocolHandlers added in sync with
     // ShellContentBrowserClient::IsHandledURL().
     InstallProtocolHandlers(job_factory.get(), &protocol_handlers_);
     bool set_protocol = job_factory->SetProtocolHandler(
         chrome::kDataScheme,
         new net::DataProtocolHandler);
     DCHECK(set_protocol);
     set_protocol = job_factory->SetProtocolHandler(
         chrome::kFileScheme,
-        new net::FileProtocolHandler);
+        new net::FileProtocolHandler(
+            content::BrowserThread::GetBlockingPool()->
+                GetTaskRunnerWithShutdownBehavior(
+                    base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)));
     DCHECK(set_protocol);
     storage_->set_job_factory(job_factory.release());
   }
 
   return url_request_context_.get();
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
     ShellURLRequestContextGetter::GetNetworkTaskRunner() const {
   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
 }
 
 net::HostResolver* ShellURLRequestContextGetter::host_resolver() {
   return url_request_context_->host_resolver();
 }
 
 }  // namespace content