Apply scroll to windows added to a non-resizeble task that's docked

bug: 26447921
Change-Id: I933e277137fb127a9e961035cf48cba2bef52042
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 51787b0..a9025bd 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -393,7 +393,7 @@
                     }
                     mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE);
                 }
-                if (task.isDockedInEffect() && !task.isResizeable()) {
+                if (task.isTwoFingerScrollMode()) {
                     stack.getBounds(mTmpRect);
                     mNonResizeableRegion.op(mTmpRect, Region.Op.UNION);
                     break;