diff -r 000000000000 -r 6474c204b198 build/mobile/robocop/Driver.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/mobile/robocop/Driver.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko;
+
+import android.app.Activity;
+
+public interface Driver {
+    /**
+     * Find the first Element using the given method.
+     * 
+     * @param activity The activity the element belongs to
+     * @param id The resource id of the element
+     * @return The first matching element on the current context, or null if not found.
+     */
+    Element findElement(Activity activity, int id);
+
+    /**
+     * Sets up scroll handling so that data is received from the extension.
+     */
+    void setupScrollHandling();
+
+    int getPageHeight();
+    int getScrollHeight();
+    int getHeight();
+    int getGeckoTop();
+    int getGeckoLeft();
+    int getGeckoWidth();
+    int getGeckoHeight();
+
+    void startFrameRecording();
+    int stopFrameRecording();
+
+    void startCheckerboardRecording();
+    float stopCheckerboardRecording();
+
+    /**
+     * Get a copy of the painted content region.
+     * @return A 2-D array of pixels (indexed by y, then x). The pixels
+     * are in ARGB-8888 format.
+     */
+    PaintedSurface getPaintedSurface();
+}