SPDY - add support for spdy/2.1 to support flow control.

net/http/http_network_transaction_unittest.cc

Index: net/http/http_network_transaction_unittest.cc
===================================================================
--- net/http/http_network_transaction_unittest.cc	(revision 113884)
+++ net/http/http_network_transaction_unittest.cc	(working copy)
@@ -95,7 +95,7 @@
 // SpdyNextProtos returns a vector of NPN protocol strings for negotiating
 // SPDY.
 std::vector<std::string> SpdyNextProtos() {
-  return MakeNextProtos("http/1.1", "spdy/2", NULL);
+  return MakeNextProtos("http/1.1", "spdy/2", "spdy/2.1", NULL);
 }
 
 }  // namespace
@@ -8544,7 +8544,8 @@
   // to https when doing an Alternate Protocol upgrade.
   HttpStreamFactory::set_use_alternate_protocols(true);
   HttpStreamFactory::set_next_protos(
-      MakeNextProtos("http/1.1", "http1.1", "spdy/2", "spdy", NULL));
+      MakeNextProtos(
+          "http/1.1", "http1.1", "spdy/2.1", "spdy/2", "spdy", NULL));
 
   SessionDependencies session_deps(ProxyService::CreateFixed("myproxy:70"));
   HttpAuthHandlerMock::Factory* auth_factory =