diff -r 000000000000 -r 6474c204b198 mobile/android/base/tests/testCheck2.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/tests/testCheck2.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,64 @@
+package org.mozilla.gecko.tests;
+
+import org.json.JSONObject;
+
+public class testCheck2 extends PixelTest {
+    @Override
+    protected Type getTestType() {
+        return Type.TALOS;
+    }
+
+    public void testCheck2() {
+        String url = getAbsoluteUrl("/startup_test/fennecmark/cnn/cnn.com/index.html");
+
+        // Enable double-tap zooming
+        JSONObject jsonPref = new JSONObject();
+        try {
+            jsonPref.put("name", "browser.ui.zoom.force-user-scalable");
+            jsonPref.put("type", "bool");
+            jsonPref.put("value", true);
+            setPreferenceAndWaitForChange(jsonPref);
+        } catch (Exception ex) {
+            mAsserter.ok(false, "exception in testCheck2", ex.toString());
+        }
+
+        blockForGeckoReady();
+        loadAndPaint(url);
+
+        mDriver.setupScrollHandling();
+
+        /*
+         * for this test, we load the timecube page, and replay a recorded sequence of events
+         * that is a user panning/zooming around the page. specific things in the sequence
+         * include:
+         * - scroll on one axis followed by scroll on another axis
+         * - pinch zoom (in and out)
+         * - double-tap zoom (in and out)
+         * - multi-fling panning with different velocities on each fling
+         *
+         * this checkerboarding metric is going to be more of a "functional" style test than
+         * a "unit" style test; i.e. it covers a little bit of a lot of things to measure
+         * overall performance, but doesn't really allow identifying which part is slow.
+         */
+
+        MotionEventReplayer mer = new MotionEventReplayer(getInstrumentation(), mDriver.getGeckoLeft(), mDriver.getGeckoTop(),
+                mDriver.getGeckoWidth(), mDriver.getGeckoHeight());
+
+        float completeness = 0.0f;
+        mDriver.startCheckerboardRecording();
+        // replay the events
+        try {
+            mer.replayEvents(getAsset("testcheck2-motionevents"));
+            // give it some time to draw any final frames
+            Thread.sleep(1000);
+            completeness = mDriver.stopCheckerboardRecording();
+        } catch (Exception e) {
+            mAsserter.ok(false, "Exception while replaying events", e.toString());
+        }
+
+        mAsserter.dumpLog("__start_report" + completeness + "__end_report");
+        System.out.println("Completeness score: " + completeness);
+        long msecs = System.currentTimeMillis();
+        mAsserter.dumpLog("__startTimestamp" + msecs + "__endTimestamp");
+    }
+}