Appease clang Chromium-style / fix a build error.

services/http_server/http_server_impl.h

 // Copyright 2015 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.
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/common/weak_binding_set.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "mojo/services/network/public/interfaces/network_service.mojom.h"
 #include "services/http_server/public/http_request.mojom.h"
 #include "services/http_server/public/http_response.mojom.h"
 #include "services/http_server/public/http_server.mojom.h"
 #include "third_party/re2/re2/re2.h"
 
 namespace mojo {
 class ApplicationImpl;
 }  // namespace mojo
 
 namespace http_server {
 
 class Connection;
 
 class HttpServerImpl : public HttpServer, public mojo::ErrorHandler {
  public:
   HttpServerImpl(mojo::ApplicationImpl* app);
+  ~HttpServerImpl() override;
 
   void AddBinding(mojo::InterfaceRequest<HttpServer> request);
 
   // HttpServer:
   void SetHandler(const mojo::String& path,
                   HttpHandlerPtr http_handler,
                   const mojo::Callback<void(bool)>& callback) override;
 
  private:
   // ErrorHandler:
@@ skipping 10 matching lines @@
   void WaitForNextConnection();
 
   void Start();
 
   void HandleRequest(Connection* connection, HttpRequestPtr request);
 
   void OnResponse(Connection* connection, HttpResponsePtr response);
 
   struct Handler {
     Handler(const std::string& pattern, HttpHandlerPtr http_handler);
+    ~Handler();
     scoped_ptr<re2::RE2> pattern;
     HttpHandlerPtr http_handler;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(Handler);
   };
 
   mojo::WeakBindingSet<HttpServer> bindings_;
 
   mojo::NetworkServicePtr network_service_;
   mojo::TCPBoundSocketPtr bound_socket_;
   mojo::TCPServerSocketPtr server_socket_;
 
   mojo::ScopedDataPipeProducerHandle pending_send_handle_;
   mojo::ScopedDataPipeConsumerHandle pending_receive_handle_;
   mojo::TCPConnectedSocketPtr pending_connected_socket_;
 
   ScopedVector<Handler> handlers_;
 
   base::WeakPtrFactory<HttpServerImpl> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(HttpServerImpl);
 };
 
 }  // namespace http_server