Revert "Issue #21 - Remove use counters telemetry"

This reverts commit 8ca9db6b65.

dom/base/test/file_use_counter_svg_getElementById.svg

@@ -0,0 +1,22 @@
+<?xml version="1.0" standalone="no"?>
+
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg width="4in" height="3in" version="1.1"
+     xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink">
+  <desc>Test graphic for hitting getElementById
+  </desc>
+  <image id="i1" x="200" y="200" width="100px" height="80px">
+  </image>
+  <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red"/>
+  <script type="text/javascript"> <![CDATA[
+    var image = document.documentElement.getElementById("i1");
+    image.addEventListener("load",
+                           function() {
+                            document.documentElement.removeAttribute("class");
+                           },
+                           false);
+    ]]>
+  </script>
+</svg>