Add request_id to HttpRequestInfo and pass it to the NetworkDelegate for events.

chrome/browser/net/chrome_network_delegate.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
 #define CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
@@ skipping 12 matching lines @@
   explicit ChromeNetworkDelegate(
       ExtensionEventRouterForwarder* event_router,
       ProfileId profile_id,
       ProtocolHandlerRegistry* protocol_handler_registry);
   virtual ~ChromeNetworkDelegate();
 
  private:
   // NetworkDelegate methods:
   virtual bool OnBeforeURLRequest(net::URLRequest* request,
                                   net::CompletionCallback* callback);
-  virtual void OnSendHttpRequest(net::HttpRequestHeaders* headers);
+  virtual bool OnBeforeHttpRequest(uint64 request_id,
+                                   net::HttpRequestHeaders* headers,
+                                   net::CompletionCallback* callback);
   virtual void OnResponseStarted(net::URLRequest* request);
   virtual void OnReadCompleted(net::URLRequest* request, int bytes_read);
   virtual net::URLRequestJob* OnMaybeCreateURLRequestJob(
       net::URLRequest* request);
 
   scoped_refptr<ExtensionEventRouterForwarder> event_router_;
   const ProfileId profile_id_;
   scoped_refptr<ProtocolHandlerRegistry> protocol_handler_registry_;
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_