Add HTTP server mojo interfaces.

mojo/services/network/public/interfaces/http_server.mojom

Index: mojo/services/network/public/interfaces/http_server.mojom
diff --git a/mojo/services/network/public/interfaces/http_server.mojom b/mojo/services/network/public/interfaces/http_server.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..dde9c45b7218828eda469fd49e6deedcfaca638a
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+++ b/mojo/services/network/public/interfaces/http_server.mojom
@@ -0,0 +1,12 @@
+// 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.
+
+module mojo;
+
+import "network/public/interfaces/http_connection.mojom";
+
+interface HttpServerDelegate {
+  // Called when a connection is established.
+  OnConnected(HttpConnection connection, HttpConnectionDelegate& delegate);
+};