Plumb firing passive event listeners.

content/renderer/input/input_handler_wrapper.cc

Index: content/renderer/input/input_handler_wrapper.cc
diff --git a/content/renderer/input/input_handler_wrapper.cc b/content/renderer/input/input_handler_wrapper.cc
index 6265744773c98d5c1ff51f6a6b958abc0de45bbd..c8280e4a3164d0c0084b3450a9ae177d3d1c79d4 100644
--- a/content/renderer/input/input_handler_wrapper.cc
+++ b/content/renderer/input/input_handler_wrapper.cc
@@ -20,7 +20,8 @@ InputHandlerWrapper::InputHandlerWrapper(
     const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
     const base::WeakPtr<cc::InputHandler>& input_handler,
     const base::WeakPtr<RenderViewImpl>& render_view_impl,
-    bool enable_smooth_scrolling)
+    bool enable_smooth_scrolling,
+    bool enable_wheel_gestures)
     : input_handler_manager_(input_handler_manager),
       routing_id_(routing_id),
       input_handler_proxy_(input_handler.get(), this),
@@ -28,6 +29,8 @@ InputHandlerWrapper::InputHandlerWrapper(
       render_view_impl_(render_view_impl) {
   DCHECK(input_handler);
   input_handler_proxy_.set_smooth_scroll_enabled(enable_smooth_scrolling);
+  input_handler_proxy_.set_use_gesture_events_for_mouse_wheel(
+      enable_wheel_gestures);
 }
 
 InputHandlerWrapper::~InputHandlerWrapper() {