Add support for attaching custom parameters to NetLog events.

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 95 matching lines @@
 
   // Clears the request trace log.
   void ClearRequestsTrace();
 
   // Starts/ends capturing requests to a trace log.
   void EnableRequestsTracing(bool enable);
 
   bool IsRequestsTracingEnabled() const;
 
   // Gets a copy of the requests trace log.
-  bool GetRequestsTrace(std::vector<NetLog::Entry>* entries);
+  bool GetRequestsTrace(CapturingNetLog::EntryList* entries);
 
   // Applies a set of constraints for requests that belong to the specified
   // pool. NOTE: Don't call this after requests have been already been started.
   //
   //  |pool_index| -- Specifies which pool these constraints should be applied
   //                  to.
   //  |max_outstanding_jobs| -- How many concurrent jobs are allowed for this
   //                            pool.
   //  |max_pending_requests| -- How many requests can be enqueued for this pool
   //                            before we start dropping requests. Dropped
@@ skipping 134 matching lines @@
 
   // The last un-cancelled IPv6ProbeJob (if any).
   scoped_refptr<IPv6ProbeJob> ipv6_probe_job_;
 
   DISALLOW_COPY_AND_ASSIGN(HostResolverImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_HOST_RESOLVER_IMPL_H_