Add support for attaching custom parameters to NetLog events.

chrome/browser/net/chrome_net_log.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_NET_LOG_H_
 #define CHROME_BROWSER_NET_CHROME_NET_LOG_H_
 
 #include "base/observer_list.h"
 #include "net/base/net_log.h"
 
 class PassiveLogCollector;
 
 // ChromeNetLog is an implementation of NetLog that dispatches network log
 // messages to a list of observers.
 //
 // By default, ChromeNetLog will attach the observer PassiveLogCollector which
 // will keep track of recent request information (which used when displaying
 // the about:net-internals page).
 //
 // TODO(eroman): Move this default observer out of ChromeNetLog.
 //
 class ChromeNetLog : public net::NetLog {
  public:
   // Interface for observing the events logged by the network stack.
   class Observer {
    public:
     virtual ~Observer() {}
-    virtual void OnAddEntry(const Entry& entry) = 0;
+    virtual void OnAddEntry(EventType type,
+                            const base::TimeTicks& time,
+                            const Source& source,
+                            EventPhase phase,
+                            EventParameters* extra_parameters) = 0;
   };
 
   ChromeNetLog();
   ~ChromeNetLog();
 
   // NetLog implementation:
-  virtual void AddEntry(const Entry& entry);
+  virtual void AddEntry(EventType type,
+                        const base::TimeTicks& time,
+                        const Source& source,
+                        EventPhase phase,
+                        EventParameters* extra_parameters);
   virtual int NextID();
   virtual bool HasListener() const;
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   PassiveLogCollector* passive_collector() {
     return passive_collector_.get();
   }
 
  private:
   int next_id_;
   scoped_ptr<PassiveLogCollector> passive_collector_;
   ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeNetLog);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_NET_LOG_H_