Remove usages of ActionBarActivity.

ActionBarActivity has been deprecated for 2+ years and has been
extending AppCompatActivity for all that time. These changes
should be no-ops.

Bug: 35253513
Test: None
Change-Id: I737d9c0e1c3d7324805370109d757bc4572407b4
(cherry picked from commit b61687b6e4ff6f1b994ba3ba19f17b0e7d399719)
diff --git a/appcompat/src/com/android/ex/photo/ b/appcompat/src/com/android/ex/photo/
index 547d4b9..a5c4a43 100644
--- a/appcompat/src/com/android/ex/photo/
+++ b/appcompat/src/com/android/ex/photo/
@@ -21,14 +21,14 @@
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
  * Activity to view the contents of an album.
-public class PhotoViewActivity extends ActionBarActivity
+public class PhotoViewActivity extends AppCompatActivity
         implements PhotoViewController.ActivityInterface {
     private PhotoViewController mController;