Migrate Messaging to androidx.

Test: make messaging
Bug: 76692459
Change-Id: I9103450622f129311545648ac75f5b2f9fc2d04a

src/com/android/messaging/ui/animation/PopupTransitionAnimation.java

@@ -80,7 +80,7 @@ public class PopupTransitionAnimation extends Animation {
         mPopupRect = new Rect();
         mActionBarRect = new Rect();
         mActionBarView = viewToAnimate.getRootView().findViewById(
-                android.support.v7.appcompat.R.id.action_bar);
+                androidx.appcompat.R.id.action_bar);
         mRectEvaluator = RectEvaluatorCompat.create();
         setDuration(UiUtils.MEDIAPICKER_TRANSITION_DURATION);
         setInterpolator(UiUtils.DEFAULT_INTERPOLATOR);