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-rw-r--r--dom/events/EventStateManager.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/dom/events/EventStateManager.cpp b/dom/events/EventStateManager.cpp
index 868bee1a3..e16d68c81 100644
--- a/dom/events/EventStateManager.cpp
+++ b/dom/events/EventStateManager.cpp
@@ -3245,6 +3245,7 @@ EventStateManager::PostHandleEvent(nsPresContext* aPresContext,
double deltaX = wheelEvent->mDeltaX;
wheelEvent->mDeltaX = wheelEvent->mDeltaY;
wheelEvent->mDeltaY = deltaX;
+ }
case WheelPrefs::ACTION_SCROLL: {
// For scrolling of default action, we should honor the mouse wheel
// transaction.