Change URLRequest to use a ref-counted buffer for actual IO....

net/url_request/url_request_file_job.cc

Index: net/url_request/url_request_file_job.cc
===================================================================
--- net/url_request/url_request_file_job.cc	(revision 8697)
+++ net/url_request/url_request_file_job.cc	(working copy)
@@ -128,12 +128,12 @@
   URLRequestJob::Kill();
 }
 
-bool URLRequestFileJob::ReadRawData(
-    char* dest, int dest_size, int *bytes_read) {
+bool URLRequestFileJob::ReadRawData(net::IOBuffer* dest, int dest_size,
+                                    int *bytes_read) {
   DCHECK_NE(dest_size, 0);
   DCHECK(bytes_read);
 
-  int rv = stream_.Read(dest, dest_size, &io_callback_);
+  int rv = stream_.Read(dest->data(), dest_size, &io_callback_);
   if (rv >= 0) {
     // Data is immediately available.
     *bytes_read = rv;