Communicate whether passive event listeners exist to cc.

cc/layers/layer.h

Index: cc/layers/layer.h
diff --git a/cc/layers/layer.h b/cc/layers/layer.h
index ef5da3359dcdbb11e1b719f4fa0b30ceeb33d280..338b235e60e45a79ea2ef55f97b5b45dc3e13adc 100644
--- a/cc/layers/layer.h
+++ b/cc/layers/layer.h
@@ -23,6 +23,7 @@
 #include "cc/base/region.h"
 #include "cc/debug/frame_timing_request.h"
 #include "cc/debug/micro_benchmark.h"
+#include "cc/layers/event_listener_properties.h"
 #include "cc/layers/layer_lists.h"
 #include "cc/layers/layer_position_constraint.h"
 #include "cc/layers/paint_properties.h"
@@ -281,8 +282,15 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
     return should_scroll_on_main_thread_;
   }
 
-  void SetHaveWheelEventHandlers(bool have_wheel_event_handlers);
-  bool have_wheel_event_handlers() const { return have_wheel_event_handlers_; }
+  void SetTouchEventProperties(EventListenerProperties touch_event_properties);
+  EventListenerProperties touch_event_properties() const {
+    return touch_event_properties_;
+  }
+
+  void SetWheelEventProperties(EventListenerProperties wheel_event_properties);
+  EventListenerProperties wheel_event_properties() const {
+    return wheel_event_properties_;
+  }
 
   void SetHaveScrollEventHandlers(bool have_scroll_event_handlers);
   bool have_scroll_event_handlers() const {
@@ -725,7 +733,6 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
   gfx::Vector2dF offset_to_transform_parent_;
   bool should_flatten_transform_from_property_tree_ : 1;
   bool should_scroll_on_main_thread_ : 1;
-  bool have_wheel_event_handlers_ : 1;
   bool have_scroll_event_handlers_ : 1;
   bool user_scrollable_horizontal_ : 1;
   bool user_scrollable_vertical_ : 1;
@@ -743,6 +750,8 @@ class CC_EXPORT Layer : public base::RefCounted<Layer>,
   bool transform_is_invertible_ : 1;
   bool has_render_surface_ : 1;
   ScrollBlocksOn scroll_blocks_on_ : 3;
+  EventListenerProperties touch_event_properties_;
+  EventListenerProperties wheel_event_properties_;
   Region non_fast_scrollable_region_;
   Region touch_event_handler_region_;
   gfx::PointF position_;