Fixes deadzone consuming touch for 3 button layout

Change-Id: Ie21af8dab462412ba0a0a4fb0d71ab1bda750c4f
Fixes: 112842731
Test: manual, set 3 button layout, tap right above home button
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStepController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStepController.java
index af1d220..48ffe81 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStepController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStepController.java
@@ -189,7 +189,7 @@
                 mNavigationBarView.getDownHitTarget() == HIT_TARGET_DEAD_ZONE;
         if (mOverviewEventSender.getProxy() == null || (!mNavigationBarView.isQuickScrubEnabled()
                 && !mNavigationBarView.isQuickStepSwipeUpEnabled())) {
-            return false;
+            return deadZoneConsumed;
         }
         mNavigationBarView.requestUnbufferedDispatch(event);