Add new Fragment API for explicitly saving/restoring state.

Also fix issue #4519821:
Blank screen displayed on tapping "Battery Use" option in the settings

We weren't correctly doing the full Activity resume code when coming
back from delivering a new Intent or result.

And fix a fragment problem where we still weren't correctly restoring
the state of list views.  (I think this was from a bad manual-merge
from master.)

Change-Id: If79dc7e998155c39ab8c04781f6c73a82238a9ef
diff --git a/core/java/android/os/Parcelable.java b/core/java/android/os/Parcelable.java
index 0a4b60f..594fbb2 100644
--- a/core/java/android/os/Parcelable.java
+++ b/core/java/android/os/Parcelable.java
@@ -113,4 +113,22 @@
          */
         public T[] newArray(int size);
     }
+
+    /**
+     * Specialization of {@link Creator} that allows you to receive the
+     * ClassLoader the object is being created in.
+     */
+    public interface ClassLoaderCreator<T> extends Creator<T> {
+        /**
+         * Create a new instance of the Parcelable class, instantiating it
+         * from the given Parcel whose data had previously been written by
+         * {@link Parcelable#writeToParcel Parcelable.writeToParcel()} and
+         * using the given ClassLoader.
+         *
+         * @param source The Parcel to read the object's data from.
+         * @param loader The ClassLoader that this object is being created in.
+         * @return Returns a new instance of the Parcelable class.
+         */
+        public T createFromParcel(Parcel source, ClassLoader loader);
+    }
 }