Remove stl_util's STLDeleteContainerPairSecondPointers from net/.

net/server/http_server.h

Index: net/server/http_server.h
diff --git a/net/server/http_server.h b/net/server/http_server.h
index a0062d6821bc30f8129e590e31ef03bf0563aa84..e01e9745f95224ca49be1f2de97ea6415bac7f2b 100644
--- a/net/server/http_server.h
+++ b/net/server/http_server.h
@@ -82,8 +82,6 @@ class HttpServer {
  private:
   friend class HttpServerTest;
 
-  typedef std::map<int, HttpConnection*> IdToConnectionMap;
-
   void DoAcceptLoop();
   void OnAcceptCompleted(int rv);
   int HandleAcceptResult(int rv);
@@ -114,7 +112,7 @@ class HttpServer {
   HttpServer::Delegate* const delegate_;
 
   int last_id_;
-  IdToConnectionMap id_to_connection_;
+  std::map<int, std::unique_ptr<HttpConnection>> id_to_connection_;
 
   base::WeakPtrFactory<HttpServer> weak_ptr_factory_;