[ServiceWorker] Don't pass DevTools related HTTP headers to the ServiceWorker

chrome/browser/devtools/devtools_network_transaction.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 "chrome/browser/devtools/devtools_network_transaction.h"
 
 #include "chrome/browser/devtools/devtools_network_controller.h"
 #include "chrome/browser/devtools/devtools_network_interceptor.h"
 #include "net/base/net_errors.h"
 #include "net/base/upload_progress.h"
 #include "net/http/http_network_transaction.h"
 #include "net/http/http_request_info.h"
 
 namespace {
 
+// Keep in sync with kDevToolsRequestInitiator and
+// kDevToolsEmulateNetworkConditionsClientId defined in
+// service_worker_url_request_job.cc and InspectorResourceAgent.cpp.
 const char kDevToolsRequestInitiator[] = "X-DevTools-Request-Initiator";
 const char kDevToolsEmulateNetworkConditionsClientId[] =
     "X-DevTools-Emulate-Network-Conditions-Client-Id";
 
 }  // namespace
 
 DevToolsNetworkTransaction::DevToolsNetworkTransaction(
     DevToolsNetworkController* controller,
     scoped_ptr<net::HttpTransaction> network_transaction)
     : controller_(controller),
@@ skipping 240 matching lines @@
 }
 
 void DevToolsNetworkTransaction::FireThrottledCallback() {
   DCHECK(!callback_.is_null());
   DCHECK(callback_type_ == READ || callback_type_ == START);
   net::CompletionCallback callback = callback_;
   callback_.Reset();
   callback_type_ = NONE;
   callback.Run(throttled_result_);
 }