Appease clang Chromium-style / fix a build error.

services/http_server/http_server_impl.cc

Index: services/http_server/http_server_impl.cc
diff --git a/services/http_server/http_server_impl.cc b/services/http_server/http_server_impl.cc
index 70650dfc9443e0399e1a768e1e64957c931bbb69..5980ca9010fcc25c4e8e298fa41d1d191e05e6eb 100644
--- a/services/http_server/http_server_impl.cc
+++ b/services/http_server/http_server_impl.cc
@@ -30,6 +30,9 @@ HttpServerImpl::HttpServerImpl(mojo::ApplicationImpl* app)
   Start();
 }
 
+HttpServerImpl::~HttpServerImpl() {
+}
+
 void HttpServerImpl::AddBinding(mojo::InterfaceRequest<HttpServer> request) {
   bindings_.AddBinding(this, request.Pass());
 }
@@ -159,4 +162,7 @@ HttpServerImpl::Handler::Handler(const std::string& pattern,
     : pattern(new RE2(pattern.c_str())), http_handler(http_handler.Pass()) {
 }
 
+HttpServerImpl::Handler::~Handler() {
+}
+
 }  // namespace http_server