From a138ec92792b5533a82976fc35c4b3e56287439d Mon Sep 17 00:00:00 2001
From: David Anderson <danderson@mozilla.com>
Date: Fri, 4 Sep 2015 17:44:23 -0700
Subject: [PATCH] Backout changeset b5e6116756b6 (wrong bug number).

---
 gfx/layers/apz/src/APZCTreeManager.cpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/gfx/layers/apz/src/APZCTreeManager.cpp b/gfx/layers/apz/src/APZCTreeManager.cpp
index 008fc51c971..100548e7e5e 100644
--- a/gfx/layers/apz/src/APZCTreeManager.cpp
+++ b/gfx/layers/apz/src/APZCTreeManager.cpp
@@ -272,11 +272,8 @@ static EventRegions
 GetEventRegions(const LayerMetricsWrapper& aLayer)
 {
   if (aLayer.IsScrollInfoLayer()) {
-    ParentLayerIntRect compositionBounds(RoundedToInt(aLayer.Metrics().GetCompositionBounds()));
-    nsIntRegion hitRegion(ParentLayerIntRect::ToUntyped(compositionBounds));
-    EventRegions eventRegions(hitRegion);
-    eventRegions.mDispatchToContentHitRegion = eventRegions.mHitRegion;
-    return eventRegions;
+    return EventRegions(nsIntRegion(ParentLayerIntRect::ToUntyped(
+      RoundedToInt(aLayer.Metrics().GetCompositionBounds()))));
   }
   return aLayer.GetEventRegions();
 }