Returning to wizard, enable migration.

Bring primary storage migration back into the adoption flow, and
provide a path for long-lived notifications to re-launch into the
Settings app.  Also provide option to initiate migration if skipped
during wizard.  For now, estmiate migration size and time based on
a Class 10 card.

Follow other callback refactoring.

Bug: 19993667
Change-Id: Ia0c28eb114bc6c8066c17b3142ed74f962140c91

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

@@ -24,6 +24,7 @@ import android.os.storage.DiskInfo;
 import android.os.storage.StorageEventListener;
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
+import android.os.storage.VolumeRecord;
 import android.preference.Preference;
 import android.preference.PreferenceScreen;
 import android.provider.DocumentsContract;
@@ -220,8 +221,8 @@ public class PublicVolumeSettings extends SettingsPreferenceFragment {
         }
 
         @Override
-        public void onVolumeMetadataChanged(String fsUuid) {
-            if (Objects.equals(mVolume.getFsUuid(), fsUuid)) {
+        public void onVolumeRecordChanged(VolumeRecord rec) {
+            if (Objects.equals(mVolume.getFsUuid(), rec.getFsUuid())) {
                 mVolume = mStorageManager.findVolumeById(mVolumeId);
                 update();
             }