Add new Cronet exception class for QUIC errors

net/test/url_request/url_request_failed_job.cc

Index: net/test/url_request/url_request_failed_job.cc
diff --git a/net/test/url_request/url_request_failed_job.cc b/net/test/url_request/url_request_failed_job.cc
index 68652ccb67fd9def70815abea7bcd877bbcce014..81c099a3238a1f38dece7de4276efc1f8a84f5d3 100644
--- a/net/test/url_request/url_request_failed_job.cc
+++ b/net/test/url_request/url_request_failed_job.cc
@@ -124,6 +124,11 @@ void URLRequestFailedJob::GetResponseInfo(HttpResponseInfo* info) {
   *info = response_info_;
 }
 
+void URLRequestFailedJob::PopulateNetErrorDetails(
+    NetErrorDetails* details) const {
+  details->quic_connection_error = QUIC_INTERNAL_ERROR;

[pauljensen, 2016/06/17 12:05:59]

I don't think we should set |quic_connection_error| for all errors, that seems
somewhat incorrect, for example for non-QUIC requests.  How about adding "if
(net_error_ == ERR_QUIC_PROTOCOL_ERROR)"?

[mgersh, 2016/06/29 23:01:09]

Done.

+}
+
 // static
 void URLRequestFailedJob::AddUrlHandler() {
   return AddUrlHandlerForHostname(kMockHostname);