In chrome:loadtimes show the NPN protocol negotiated

chrome/renderer/loadtimes_extension_bindings.cc

 // Copyright (c) 2011 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 "chrome/renderer/loadtimes_extension_bindings.h"
 
 #include <math.h>
 
 #include "base/time.h"
 #include "content/public/renderer/document_state.h"
@@ skipping 117 matching lines @@
                 document_state->first_paint_after_load_time().ToDoubleT()));
         load_times->Set(
             v8::String::New("navigationType"),
             v8::String::New(GetNavigationType(data_source->navigationType())));
         load_times->Set(
             v8::String::New("wasFetchedViaSpdy"),
             v8::Boolean::New(document_state->was_fetched_via_spdy()));
         load_times->Set(
             v8::String::New("wasNpnNegotiated"),
             v8::Boolean::New(document_state->was_npn_negotiated()));
+         load_times->Set(
+            v8::String::New("npnNegotiatedProtocol"),
+            v8::String::New(document_state->npn_negotiated_protocol().c_str()));
         load_times->Set(
             v8::String::New("wasAlternateProtocolAvailable"),
             v8::Boolean::New(
                 document_state->was_alternate_protocol_available()));
         return load_times;
       }
     }
     return v8::Null();
   }
 
@@ skipping 30 matching lines @@
     }
     return v8::Null();
   }
 };
 
 v8::Extension* LoadTimesExtension::Get() {
   return new LoadTimesExtensionWrapper();
 }
 
 }  // namespace extensions_v8