Restrict reflection access to View methods

Restricted reflection access to:
- dispatchAttachedToWindow
- dispatchDetachedFromWindow

Those should not be used directly as it violates internal code
guarantees. Instead Views need to be actually attached to the window.

Bug: 123769352, 123769370
Test: n/a

Change-Id: I0006bc99a2d10747e931e944caee21932c4642dd

core/java/android/view/View.java

@@ -19413,7 +19413,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
      * @param info the {@link android.view.View.AttachInfo} to associated with
      *        this view
      */
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     void dispatchAttachedToWindow(AttachInfo info, int visibility) {
         mAttachInfo = info;
         if (mOverlay != null) {
@@ -19479,7 +19479,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         notifyAppearedOrDisappearedForContentCaptureIfNeeded(true);
     }
 
-    @UnsupportedAppUsage
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     void dispatchDetachedFromWindow() {
         AttachInfo info = mAttachInfo;
         if (info != null) {