Add chrome://site-tiles-internals/

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

Index: chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
index 8a1544aee6969f6cd932373e48226f38a8234aba..0ca33fad9d07d32222c619e8b2a0a9e1d5b77a95 100644
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -40,6 +40,7 @@
 #include "chrome/browser/ui/webui/log_web_ui_url.h"
 #include "chrome/browser/ui/webui/net_export_ui.h"
 #include "chrome/browser/ui/webui/net_internals/net_internals_ui.h"
+#include "chrome/browser/ui/webui/ntp_tiles_internals_ui.h"
 #include "chrome/browser/ui/webui/omnibox/omnibox_ui.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "chrome/browser/ui/webui/password_manager_internals/password_manager_internals_ui.h"
@@ -352,6 +353,8 @@ WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
     return &NewWebUI<NetExportUI>;
   if (url.host_piece() == chrome::kChromeUINetInternalsHost)
     return &NewWebUI<NetInternalsUI>;
+  if (url.host_piece() == chrome::kChromeUINTPTilesInternalsHost)
+    return &NewWebUI<NTPTilesInternalsUI>;
   if (url.host_piece() == chrome::kChromeUIOmniboxHost)
     return &NewWebUI<OmniboxUI>;
   if (url.host_piece() == chrome::kChromeUIPasswordManagerInternalsHost)