Decouple URLRequestJob from URLRequestContext; access NetworkDelegate as a contructor parameter.

webkit/fileapi/file_system_dir_url_request_job.cc

Index: webkit/fileapi/file_system_dir_url_request_job.cc
diff --git a/webkit/fileapi/file_system_dir_url_request_job.cc b/webkit/fileapi/file_system_dir_url_request_job.cc
index b5b3cdef2279c18d3359af1df3898be56cdb2cb4..6a1a6ac128770c21356695c8d0192fc51fdb5363 100644
--- a/webkit/fileapi/file_system_dir_url_request_job.cc
+++ b/webkit/fileapi/file_system_dir_url_request_job.cc
@@ -20,6 +20,7 @@
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/url_request/url_request.h"
+#include "net/url_request/url_request_context.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation.h"
 #include "webkit/fileapi/file_system_util.h"
@@ -40,7 +41,7 @@ static FilePath GetRelativePath(const GURL& url) {
 
 FileSystemDirURLRequestJob::FileSystemDirURLRequestJob(
     URLRequest* request, FileSystemContext* file_system_context)
-    : URLRequestJob(request),
+    : URLRequestJob(request, request->context()->network_delegate()),
       file_system_context_(file_system_context),
       ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
 }