Fix incorrect fragment animation used for hiding fragments

Mirror of support lib patch
https://android-review.googlesource.com/#/c/60032/ into
frameworks/base.

Change-Id: I8d1cb2e217721336674b8e3e2ef8722a8d9baefd

core/java/android/app/FragmentManager.java

@@ -1169,7 +1169,7 @@ final class FragmentManagerImpl extends FragmentManager {
         if (!fragment.mHidden) {
             fragment.mHidden = true;
             if (fragment.mView != null) {
-                Animator anim = loadAnimator(fragment, transition, true,
+                Animator anim = loadAnimator(fragment, transition, false,
                         transitionStyle);
                 if (anim != null) {
                     anim.setTarget(fragment.mView);