diff -r 000000000000 -r 6474c204b198 mobile/android/base/sync/setup/Constants.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/sync/setup/Constants.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,110 @@
+/* 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.sync.setup;
+
+import android.content.Intent;
+
+public class Constants {
+  // Constants for Firefox Sync SyncAdapter Accounts.
+  public static final String OPTION_SYNCKEY       = "option.synckey";
+  public static final String OPTION_USERNAME      = "option.username";
+  public static final String AUTHTOKEN_TYPE_PLAIN = "auth.plain";
+  public static final String OPTION_SERVER        = "option.serverUrl";
+  public static final String DATA_ENABLE_ON_UPGRADE = "data.enableOnUpgrade";
+
+  public static final String DEFAULT_PROFILE = "default";
+
+  /**
+   * Name of file to pickle current account preferences to each sync.
+   * <p>
+   * Must not contain path separators!
+   */
+  public static final String ACCOUNT_PICKLE_FILENAME = "sync.account.json";
+
+  /**
+   * Key in sync extras bundle specifying stages to sync this sync session.
+   * <p>
+   * Corresponding value should be a String JSON-encoding an object, the keys of
+   * which are the stage names to sync. For example:
+   * <code>"{ \"stageToSync\": 0 }"</code>.
+   */
+  public static final String EXTRAS_KEY_STAGES_TO_SYNC = "sync";
+
+  /**
+   * Key in sync extras bundle specifying stages to skip this sync session.
+   * <p>
+   * Corresponding value should be a String JSON-encoding an object, the keys of
+   * which are the stage names to skip. For example:
+   * <code>"{ \"stageToSkip\": 0 }"</code>.
+   */
+  public static final String EXTRAS_KEY_STAGES_TO_SKIP = "skip";
+
+  // Constants for Activities.
+  public static final String INTENT_EXTRA_IS_SETUP        = "isSetup";
+  public static final String INTENT_EXTRA_IS_PAIR         = "isPair";
+  public static final String INTENT_EXTRA_IS_ACCOUNTERROR = "isAccountError";
+
+  public static final int FLAG_ACTIVITY_REORDER_TO_FRONT_NO_ANIMATION =
+    Intent.FLAG_ACTIVITY_REORDER_TO_FRONT |
+    Intent.FLAG_ACTIVITY_NO_ANIMATION;
+
+  // Constants for Account Authentication.
+  public static final String AUTH_SERVER_VERSION  = "1.1/";
+  public static final String AUTH_SERVER_SUFFIX   = "info/collections/";
+
+  // Account Authentication Errors.
+  public static final String AUTH_ERROR_NOUSER    = "auth.error.badcredentials";
+
+  // Links for J-PAKE setup help pages.
+  public static final String LINK_FIND_CODE       = "https://support.mozilla.org/kb/find-code-to-add-device-to-firefox-sync";
+  public static final String LINK_FIND_ADD_DEVICE = "https://support.mozilla.org/kb/add-a-device-to-firefox-sync";
+
+  // Constants for JSON payload.
+  public static final String JSON_KEY_PAYLOAD    = "payload";
+  public static final String JSON_KEY_CIPHERTEXT = "ciphertext";
+  public static final String JSON_KEY_HMAC       = "hmac";
+  public static final String JSON_KEY_IV         = "IV";
+  public static final String JSON_KEY_TYPE       = "type";
+  public static final String JSON_KEY_VERSION    = "version";
+  public static final String JSON_KEY_ETAG       = "etag";
+
+  public static final String JSON_KEY_ACCOUNT    = "account";
+  public static final String JSON_KEY_PASSWORD   = "password";
+  public static final String JSON_KEY_SYNCKEY    = "synckey";
+  public static final String JSON_KEY_SERVER     = "serverURL";
+  public static final String JSON_KEY_CLUSTER    = "clusterURL";
+  public static final String JSON_KEY_CLIENT_NAME = "clientName";
+  public static final String JSON_KEY_CLIENT_GUID = "clientGUID";
+  public static final String JSON_KEY_SYNC_AUTOMATICALLY = "syncAutomatically";
+  public static final String JSON_KEY_TIMESTAMP  = "timestamp";
+
+  public static final String CRYPTO_KEY_GR1 = "gr1";
+  public static final String CRYPTO_KEY_GR2 = "gr2";
+
+  public static final String ZKP_KEY_GX1    = "gx1";
+  public static final String ZKP_KEY_GX2    = "gx2";
+
+  public static final String ZKP_KEY_ZKP_X1 = "zkp_x1";
+  public static final String ZKP_KEY_ZKP_X2 = "zkp_x2";
+  public static final String ZKP_KEY_B      = "b";
+  public static final String ZKP_KEY_GR     = "gr";
+  public static final String ZKP_KEY_ID     = "id";
+
+  public static final String ZKP_KEY_A      = "A";
+  public static final String ZKP_KEY_ZKP_A  = "zkp_A";
+
+  // J-PAKE errors.
+  public static final String JPAKE_ERROR_CHANNEL          = "jpake.error.channel";
+  public static final String JPAKE_ERROR_NETWORK          = "jpake.error.network";
+  public static final String JPAKE_ERROR_SERVER           = "jpake.error.server";
+  public static final String JPAKE_ERROR_TIMEOUT          = "jpake.error.timeout";
+  public static final String JPAKE_ERROR_INTERNAL         = "jpake.error.internal";
+  public static final String JPAKE_ERROR_INVALID          = "jpake.error.invalid";
+  public static final String JPAKE_ERROR_NODATA           = "jpake.error.nodata";
+  public static final String JPAKE_ERROR_KEYMISMATCH      = "jpake.error.keymismatch";
+  public static final String JPAKE_ERROR_WRONGMESSAGE     = "jpake.error.wrongmessage";
+  public static final String JPAKE_ERROR_USERABORT        = "jpake.error.userabort";
+  public static final String JPAKE_ERROR_DELAYUNSUPPORTED = "jpake.error.delayunsupported";
+}