diff -r 000000000000 -r 6474c204b198 mobile/android/base/preferences/PrivateDataPreference.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/preferences/PrivateDataPreference.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,59 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
+ * 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.preferences;
+
+import org.mozilla.gecko.GeckoAppShell;
+import org.mozilla.gecko.GeckoEvent;
+import org.mozilla.gecko.Telemetry;
+import org.mozilla.gecko.TelemetryContract;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.util.Log;
+
+class PrivateDataPreference extends MultiChoicePreference {
+    private static final String LOGTAG = "GeckoPrivateDataPreference";
+    private static final String PREF_KEY_PREFIX = "private.data.";
+
+    public PrivateDataPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        super.onDialogClosed(positiveResult);
+
+        if (!positiveResult)
+            return;
+
+        Telemetry.sendUIEvent(TelemetryContract.Event.SANITIZE, TelemetryContract.Method.DIALOG);
+
+        CharSequence keys[] = getEntryKeys();
+        boolean values[] = getValues();
+        JSONObject json = new JSONObject();
+
+        for (int i = 0; i < keys.length; i++) {
+            // Privacy pref checkbox values are stored in Android prefs to
+            // remember their check states. The key names are private.data.X,
+            // where X is a string from Gecko sanitization. This prefix is
+            // removed here so we can send the values to Gecko, which then does
+            // the sanitization for each key.
+            String key = keys[i].toString().substring(PREF_KEY_PREFIX.length());
+            boolean value = values[i];
+            try {
+                json.put(key, value);
+            } catch (JSONException e) {
+                Log.e(LOGTAG, "JSON error", e);
+            }
+        }
+
+        // clear private data in gecko
+        GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Sanitize:ClearData", json.toString()));
+    }
+}