Use automatic memory management for URLRequestContext's members....

net/url_request/url_request_unittest.cc

Index: net/url_request/url_request_unittest.cc
===================================================================
--- net/url_request/url_request_unittest.cc	(revision 6881)
+++ net/url_request/url_request_unittest.cc	(working copy)
@@ -29,7 +29,6 @@
 #include "net/disk_cache/disk_cache.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_network_layer.h"
-#include "net/proxy/proxy_resolver_null.h"
 #include "net/proxy/proxy_service.h"
 #include "net/url_request/url_request.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -42,16 +41,11 @@
 class URLRequestHttpCacheContext : public URLRequestContext {
  public:
   URLRequestHttpCacheContext() {
-    proxy_service_ = new net::ProxyService(new net::ProxyResolverNull);
-    http_transaction_factory_ =
+    proxy_service_ = net::ProxyService::CreateNull();
+    http_transaction_factory_.reset(
         new net::HttpCache(net::HttpNetworkLayer::CreateFactory(proxy_service_),
-                           disk_cache::CreateInMemoryCacheBackend(0));
+                           disk_cache::CreateInMemoryCacheBackend(0)));
   }
-
-  virtual ~URLRequestHttpCacheContext() {
-    delete http_transaction_factory_;
-    delete proxy_service_;
-  }
 };
 
 class TestURLRequest : public URLRequest {