Make ServiceWorkerFetchRequest and ServiceWorkerResponse header maps case insensitive

content/renderer/service_worker/service_worker_script_context.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 "content/renderer/service_worker/service_worker_script_context.h"
 
 #include <map>
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 131 matching lines @@
 }
 
 void ServiceWorkerScriptContext::OnFetchEvent(
     int request_id,
     const ServiceWorkerFetchRequest& request) {
   blink::WebServiceWorkerRequest webRequest;
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerScriptContext::OnFetchEvent");
   webRequest.setURL(blink::WebURL(request.url));
   webRequest.setMethod(blink::WebString::fromUTF8(request.method));
-  for (std::map<std::string, std::string>::const_iterator it =
-           request.headers.begin();
+  for (ServiceWorkerHeaderMap::const_iterator it = request.headers.begin();
        it != request.headers.end();
        ++it) {
     webRequest.setHeader(blink::WebString::fromUTF8(it->first),
                          blink::WebString::fromUTF8(it->second));
   }
   if (!request.blob_uuid.empty()) {
     webRequest.setBlob(blink::WebString::fromUTF8(request.blob_uuid),
                        request.blob_size);
   }
   webRequest.setReferrer(blink::WebString::fromUTF8(request.referrer.spec()),
@@ skipping 47 matching lines @@
     return;
   }
   scoped_ptr<blink::WebServiceWorkerClientsInfo> info(
       new blink::WebServiceWorkerClientsInfo);
   info->clientIDs = client_ids;
   callbacks->onSuccess(info.release());
   pending_clients_callbacks_.Remove(request_id);
 }
 
 }  // namespace content