Remove WorkerPool dependency from URLRequestFileJob.

android_webview/browser/net/aw_url_request_context_getter.cc

Index: android_webview/browser/net/aw_url_request_context_getter.cc
diff --git a/android_webview/browser/net/aw_url_request_context_getter.cc b/android_webview/browser/net/aw_url_request_context_getter.cc
index eed948f0b17e84f6ad2ebf261ac7bf9486b93985..d773e0549c8fe9441a1870c324bd3dcc682e7768 100644
--- a/android_webview/browser/net/aw_url_request_context_getter.cc
+++ b/android_webview/browser/net/aw_url_request_context_getter.cc
@@ -14,6 +14,7 @@
 #include "android_webview/browser/net/init_native_callback.h"
 #include "android_webview/common/aw_switches.h"
 #include "base/command_line.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/cookie_store_factory.h"
@@ -70,7 +71,10 @@ void AwURLRequestContextGetter::Init() {
 void AwURLRequestContextGetter::InitAsync() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
-  net::URLRequestContextBuilder builder;
+  net::URLRequestContextBuilder builder(
+      content::BrowserThread::GetBlockingPool()->
+          GetTaskRunnerWithShutdownBehavior(
+              base::SequencedWorkerPool::SKIP_ON_SHUTDOWN));
   builder.set_user_agent(content::GetUserAgent(GURL()));
   builder.set_network_delegate(new AwNetworkDelegate());
 #if !defined(DISABLE_FTP_SUPPORT)
@@ -123,7 +127,11 @@ net::URLRequestContext* AwURLRequestContextGetter::GetURLRequestContext() {
   if (!job_factory_) {
     scoped_ptr<AwURLRequestJobFactory> job_factory(new AwURLRequestJobFactory);
     bool set_protocol = job_factory->SetProtocolHandler(
-        chrome::kFileScheme, new net::FileProtocolHandler());
+        chrome::kFileScheme,
+        new net::FileProtocolHandler(
+            content::BrowserThread::GetBlockingPool()->
+                GetTaskRunnerWithShutdownBehavior(
+                    base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)));
     DCHECK(set_protocol);
     set_protocol = job_factory->SetProtocolHandler(
         chrome::kDataScheme, new net::DataProtocolHandler());