WebUI: Update some more uses of the old-style i18ntemplate/LocalStrings.

chrome/browser/ui/webui/about_ui.cc

Index: chrome/browser/ui/webui/about_ui.cc
diff --git a/chrome/browser/ui/webui/about_ui.cc b/chrome/browser/ui/webui/about_ui.cc
index 8ad5412799455d3752bbac25ab2c764caa43dce4..4e6e81a780f4b671a55ce96d4e9c8dc97c78517c 100644
--- a/chrome/browser/ui/webui/about_ui.cc
+++ b/chrome/browser/ui/webui/about_ui.cc
@@ -705,7 +705,7 @@ std::string AboutStats(const std::string& query) {
           base::JSONWriter::OPTIONS_PRETTY_PRINT,
           &data);
     if (query == kStringsJsPath)
-      data = "var templateData = " + data + ";";
+      data = "loadTimeData.data = " + data + ";";
   } else if (query == "raw") {
     // Dump the raw counters which have changed in text format.
     data = "<pre>";