Checkpoint of new storage wizards.

Use frameworks/opt/setupwizard/library/ for consistent behavior and
styling on phones and tablets.  Implement every step of wizard flow
and connect them together, even though some steps are currently
non-functional.  All strings to match UX spec, with some adjustment.

Wizards inherit from helper base class.

New interstitials before unmounting or formatting private storage
to confirm user knows consequences.

Bug: 19993667
Change-Id: I2c774e1718d513805ee8aecfc96d066d4730450c

src/com/android/settings/deviceinfo/StorageWizardMigrateProgress.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo;
+
+import static com.android.settings.deviceinfo.StorageSettings.TAG;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.SystemClock;
+import android.util.Log;
+import android.view.View;
+import android.widget.Toast;
+
+import com.android.internal.util.Preconditions;
+import com.android.settings.R;
+
+public class StorageWizardMigrateProgress extends StorageWizardBase {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.storage_wizard_progress);
+
+        Preconditions.checkNotNull(mDisk);
+
+        setHeaderText(R.string.storage_wizard_migrate_progress_title, mDisk.getDescription());
+        setBodyText(R.string.storage_wizard_migrate_details, mDisk.getDescription());
+
+        setCurrentProgress(20);
+
+        getNextButton().setVisibility(View.GONE);
+
+        new MigrateTask().execute();
+    }
+
+    public class MigrateTask extends AsyncTask<Void, Void, Exception> {
+        @Override
+        protected Exception doInBackground(Void... params) {
+            // TODO: wire up migration
+            SystemClock.sleep(2000);
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Exception e) {
+            final Context context = StorageWizardMigrateProgress.this;
+            if (e == null) {
+                final Intent intent = new Intent(context, StorageWizardReady.class);
+                intent.putExtra(EXTRA_DISK_ID, mDisk.id);
+                startActivity(intent);
+                finishAffinity();
+
+            } else {
+                Log.e(TAG, "Failed to migrate", e);
+                Toast.makeText(context, e.getMessage(), Toast.LENGTH_LONG).show();
+                finishAffinity();
+            }
+        }
+    }
+}