Merge "Make sure mParent is not null before using it" into sc-v2-dev am: 92b3fbcdb7 am: 1bba929193

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16182631

Change-Id: I7e7d2cef60236ba1e4cd37214e4aec0a38040529
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index dabe1e9..f529172 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -20288,7 +20288,7 @@
      */
     @CallSuper
     protected void onAttachedToWindow() {
-        if ((mPrivateFlags & PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
+        if (mParent != null && (mPrivateFlags & PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
             mParent.requestTransparentRegion(this);
         }
 
@@ -25070,7 +25070,7 @@
 
         View parent = this;
 
-        while (parent.mParent != null && parent.mParent instanceof View) {
+        while (parent.mParent instanceof View) {
             parent = (View) parent.mParent;
         }