Check if the window is partially obscured for slippery enters am: 6e689ffe3f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/16185286

Change-Id: I6645db77a493d55aacc8f645db625ea5f89a8d36
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index b921d95..e8ee736 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -1446,6 +1446,8 @@
                 }
                 if (isWindowObscuredAtPointLocked(newTouchedWindowHandle, x, y)) {
                     targetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED;
+                } else if (isWindowObscuredLocked(newTouchedWindowHandle)) {
+                    targetFlags |= InputTarget::FLAG_WINDOW_IS_PARTIALLY_OBSCURED;
                 }
 
                 BitSet32 pointerIds;