Add ProxyResolverFactoryV8Tracing.

net/proxy/proxy_service_v8.cc

Index: net/proxy/proxy_service_v8.cc
diff --git a/net/proxy/proxy_service_v8.cc b/net/proxy/proxy_service_v8.cc
index 60916771ab677aef315aafb3f36ecac5f04edc3a..3634613ccde6503f4c3bf61f83d922dfd2469b3d 100644
--- a/net/proxy/proxy_service_v8.cc
+++ b/net/proxy/proxy_service_v8.cc
@@ -14,38 +14,6 @@
 #include "net/proxy/proxy_service.h"
 
 namespace net {
-namespace {
-
-class ProxyResolverFactoryForV8Resolver : public LegacyProxyResolverFactory {
- public:
-  explicit ProxyResolverFactoryForV8Resolver(HostResolver* host_resolver,
-                                             NetLog* net_log,
-                                             NetworkDelegate* network_delegate)
-      : LegacyProxyResolverFactory(true),
-        host_resolver_(host_resolver),
-        net_log_(net_log),
-        network_delegate_(network_delegate) {}
-
-  // LegacyProxyResolverFactory override.
-  scoped_ptr<ProxyResolver> CreateProxyResolver() override {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    ProxyResolverErrorObserver* error_observer =
-        new NetworkDelegateErrorObserver(
-            network_delegate_, base::ThreadTaskRunnerHandle::Get().get());
-    return make_scoped_ptr(
-        new ProxyResolverV8Tracing(host_resolver_, error_observer, net_log_));
-  }
-
- private:
-  HostResolver* const host_resolver_;
-  NetLog* const net_log_;
-  NetworkDelegate* const network_delegate_;
-
-  base::ThreadChecker thread_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(ProxyResolverFactoryForV8Resolver);
-};
-}  // namespace
 
 // static
 ProxyService* CreateProxyServiceUsingV8ProxyResolver(
@@ -60,11 +28,13 @@ ProxyService* CreateProxyServiceUsingV8ProxyResolver(
   DCHECK(dhcp_proxy_script_fetcher);
   DCHECK(host_resolver);
 
-  ProxyService* proxy_service =
-      new ProxyService(proxy_config_service,
-                       make_scoped_ptr(new ProxyResolverFactoryForV8Resolver(
-                           host_resolver, net_log, network_delegate)),
-                       net_log);
+  ProxyService* proxy_service = new ProxyService(
+      proxy_config_service,
+      make_scoped_ptr(new ProxyResolverFactoryV8Tracing(
+          host_resolver, net_log, ProxyResolver::LoadStateChangedCallback(),
+          base::Bind(&NetworkDelegateErrorObserver::Create, network_delegate,
+                     base::ThreadTaskRunnerHandle::Get()))),
+      net_log);
 
   // Configure fetchers to use for PAC script downloads and auto-detect.
   proxy_service->SetProxyScriptFetchers(proxy_script_fetcher,