net: Notify the http job and cache transaction about a filter

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
===================================================================
--- net/url_request/url_request_http_job.cc	(revision 95711)
+++ net/url_request/url_request_http_job.cc	(working copy)
@@ -1203,6 +1203,12 @@
     transaction_->StopCaching();
 }
 
+void URLRequestHttpJob::DoneReading() {
+  if (transaction_.get())
+    transaction_->DoneReading();
+  DoneWithRequest(FINISHED);
+}
+
 HostPortPair URLRequestHttpJob::GetSocketAddress() const {
   return response_info_ ? response_info_->socket_address : HostPortPair();
 }