Implement LoadLog, and hook up HostResolverImpl to LoadLog....

net/base/host_resolver_impl.h

 // Copyright (c) 2006-2008 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 NET_BASE_HOST_RESOLVER_IMPL_H_
 #define NET_BASE_HOST_RESOLVER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 76 matching lines @@
 
   // Returns the outstanding job for |hostname|, or NULL if there is none.
   Job* FindOutstandingJob(const std::string& hostname);
 
   // Removes |job| from the outstanding jobs list.
   void RemoveOutstandingJob(Job* job);
 
   // Callback for when |job| has completed with |error| and |addrlist|.
   void OnJobComplete(Job* job, int error, const AddressList& addrlist);
 
-  // Notify all observers of the start of a resolve request.
-  void NotifyObserversStartRequest(int request_id,
-                                   const RequestInfo& info);
+  // Called when a request has just been started.
+  void OnStartRequest(LoadLog* load_log,
+                      int request_id,
+                      const RequestInfo& info);
 
-  // Notify all observers of the completion of a resolve request.
-  void NotifyObserversFinishRequest(int request_id,
-                                    const RequestInfo& info,
-                                    int error);
+  // Called when a request has just completed (before its callback is run).
+  void OnFinishRequest(LoadLog* load_log,
+                       int request_id,
+                       const RequestInfo& info,
+                       int error);
 
-  // Notify all observers of the cancellation of a resolve request.
-  void NotifyObserversCancelRequest(int request_id,
-                                    const RequestInfo& info);
+  // Called when a request has been cancelled.
+  void OnCancelRequest(LoadLog* load_log,
+                       int request_id,
+                       const RequestInfo& info);
 
   // Cache of host resolution results.
   HostCache cache_;
 
   // Map from hostname to outstanding job.
   JobMap jobs_;
 
   // The job that OnJobComplete() is currently processing (needed in case
   // HostResolver gets deleted from within the callback).
   scoped_refptr<Job> cur_completing_job_;
@@ skipping 11 matching lines @@
 
   // TODO(eroman): temp hack for http://crbug.com/15513
   bool shutdown_;
 
   DISALLOW_COPY_AND_ASSIGN(HostResolverImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_HOST_RESOLVER_IMPL_H_