Allow specifying proxy scripts using file:// URLs.

chrome/browser/io_thread.h

Index: chrome/browser/io_thread.h
diff --git a/chrome/browser/io_thread.h b/chrome/browser/io_thread.h
index a8573c48e2ca5a458f7ecc4f06c4514c43f2624b..0c4b4d9521e99fcb5a821556746fe578437f1650 100644
--- a/chrome/browser/io_thread.h
+++ b/chrome/browser/io_thread.h
@@ -57,6 +57,7 @@ class SSLConfigService;
 class TransportSecurityState;
 class URLRequestContext;
 class URLRequestContextGetter;
+class URLRequestJobFactory;
 class URLRequestThrottlerManager;
 class URLSecurityManager;
 }  // namespace net
@@ -122,6 +123,10 @@ class IOThread : public content::BrowserThreadDelegate {
     scoped_ptr<net::ProxyService> proxy_script_fetcher_proxy_service;
     scoped_ptr<net::HttpTransactionFactory>
         proxy_script_fetcher_http_transaction_factory;
+    scoped_ptr<net::FtpTransactionFactory>
+        proxy_script_fetcher_ftp_transaction_factory;
+    scoped_ptr<net::URLRequestJobFactory>
+        proxy_script_fetcher_url_request_job_factory;
     scoped_ptr<net::URLRequestThrottlerManager> throttler_manager;
     scoped_ptr<net::URLSecurityManager> url_security_manager;
     // TODO(willchan): Remove proxy script fetcher context since it's not