Support needed to measure user and service traffic in Chrome.

chrome/browser/net/chrome_extensions_network_delegate.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/net/chrome_extensions_network_delegate.h"
 
 #include "net/base/net_errors.h"
 
 #if defined(ENABLE_EXTENSIONS)
 #include "chrome/browser/browser_process.h"
@@ skipping 53 matching lines @@
   if (!info)
     return;
 
   if (status == REQUEST_STARTED && request->url_chain().size() > 1) {
     // It's a redirect, this request has already been counted.
     return;
   }
 
   int process_id, render_frame_id;
   if (info->GetAssociatedRenderFrame(&process_id, &render_frame_id)) {
+    // By checking negative process_id, it is tested that a real request is
+    // processing or it is in test mode. In test mode it is not needed to post
+    // this task and it causes errors.
+    if (process_id < 0)
+      return;
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&NotifyEPMRequestStatus, status, profile_id,
                    request->identifier(), process_id, render_frame_id));
   }
 }
 
 class ChromeExtensionsNetworkDelegateImpl
     : public ChromeExtensionsNetworkDelegate {
  public:
@@ skipping 262 matching lines @@
 }
 
 net::NetworkDelegate::AuthRequiredResponse
 ChromeExtensionsNetworkDelegate::OnAuthRequired(
     net::URLRequest* request,
     const net::AuthChallengeInfo& auth_info,
     const AuthCallback& callback,
     net::AuthCredentials* credentials) {
   return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
 }