Refactor SSLClientSocket::SerializeNextProtos().

net/socket/next_proto.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/socket/next_proto.h"
 
 namespace net {
 
 NextProtoVector NextProtosDefaults() {
   NextProtoVector next_protos;
@@ skipping 22 matching lines @@
   next_protos.push_back(kProtoQUIC1SPDY3);
   next_protos.push_back(kProtoSPDY31);
   return next_protos;
 }
 
 bool NextProtoIsSPDY(NextProto next_proto) {
   return next_proto >= kProtoSPDYMinimumVersion &&
          next_proto <= kProtoSPDYMaximumVersion;
 }
 
+void DisableHTTP2(NextProtoVector* next_protos) {
+  for (NextProtoVector::iterator it = next_protos->begin();
+       it != next_protos->end();) {
+    if (*it == kProtoHTTP2) {
+      it = next_protos->erase(it);
+      continue;
+    }
+    ++it;
+  }
+}
+
 }  // namespace net