Clean up choose lock intent creation

Consolidated the many variants of ChooseLock*.createIntent, so that
it will take the same set of arguments.

Also modified SetupChooseLock*.createIntent to modifyIntentForSetup,
which will take the intent created by ChooseLock* and modify it for
use with setup.

Test: cd tests/robotests && mma
Change-Id: I5ff033f459c33ec9980872a536b3996d89f2bbbb
diff --git a/src/com/android/settings/MasterClear.java b/src/com/android/settings/MasterClear.java
index ef4190b..77c6091 100644
--- a/src/com/android/settings/MasterClear.java
+++ b/src/com/android/settings/MasterClear.java
@@ -16,6 +16,8 @@
 
 package com.android.settings;
 
+import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+
 import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.accounts.AuthenticatorDescription;
@@ -48,13 +50,13 @@
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.password.ChooseLockSettingsHelper;
+import com.android.settings.password.ConfirmLockPattern;
 import com.android.settings.widget.CarrierDemoPasswordDialogFragment;
 import com.android.settingslib.RestrictedLockUtils;
 
 import java.util.List;
 
-import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
-
 /**
  * Confirm and execute a reset of the device to a clean "just out of the box"
  * state.  Multiple confirmations are required: first, a general "are you sure