Add chrome://site-tiles-internals/

components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.cc

Index: components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.cc
diff --git a/components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.cc b/components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3a5f3069b6126891ef0b51c069c6ce7c9dfe0f1a
--- /dev/null
+++ b/components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.cc
@@ -0,0 +1,14 @@
+// Copyright 2016 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 "components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.h"
+
+namespace ntp_tiles {
+
+NTPTilesInternalsMessageHandlerClient::NTPTilesInternalsMessageHandlerClient() =
+    default;
+NTPTilesInternalsMessageHandlerClient::
+    ~NTPTilesInternalsMessageHandlerClient() = default;
+
+}  // namespace ntp_tiles