Communicate whether passive event listeners exist to cc.

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index 8fa0ac3a1c3b10dc753efe590013cd7b896a2bb7..aae70017d30e93f901b4fab934212f63d9ccc923 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -686,7 +686,7 @@ TEST_F(LayerTreeHostImplTest, ScrollBlocksOnWheelEventHandlers) {
 
   // With registered event handlers, wheel scrolls don't necessarily
   // have to go to the main thread.
-  root->SetHaveWheelEventHandlers(true);
+  root->SetWheelEventProperties(EventListenerProperties::BLOCKING);
   EXPECT_EQ(InputHandler::SCROLL_STARTED,
             host_impl_->ScrollBegin(gfx::Point(), InputHandler::WHEEL));
   host_impl_->ScrollEnd();
@@ -704,7 +704,7 @@ TEST_F(LayerTreeHostImplTest, ScrollBlocksOnWheelEventHandlers) {
 
   // And if the handlers go away, wheel scrolls can again be processed
   // on impl (despite the scroll-blocks-on mode).
-  root->SetHaveWheelEventHandlers(false);
+  root->SetWheelEventProperties(EventListenerProperties::NONE);
   EXPECT_EQ(InputHandler::SCROLL_STARTED,
             host_impl_->ScrollBegin(gfx::Point(), InputHandler::WHEEL));
   host_impl_->ScrollEnd();
@@ -804,7 +804,8 @@ TEST_F(LayerTreeHostImplTest, ScrollBlocksOnLayerTopology) {
         7, gfx::Size(10, 10), scrollable_child_clip_1.get());
     child1 = scrollable_child_1.get();
     scrollable_child_1->SetPosition(gfx::PointF(5.f, 5.f));
-    scrollable_child_1->SetHaveWheelEventHandlers(true);
+    scrollable_child_1->SetWheelEventProperties(
+        EventListenerProperties::BLOCKING);
     scrollable_child_1->SetHaveScrollEventHandlers(true);
     scrollable_child_clip_1->AddChild(std::move(scrollable_child_1));
     root_child->AddChild(std::move(scrollable_child_clip_1));
@@ -819,7 +820,8 @@ TEST_F(LayerTreeHostImplTest, ScrollBlocksOnLayerTopology) {
         9, gfx::Size(10, 10), scrollable_child_clip_2.get());
     child2 = scrollable_child_2.get();
     scrollable_child_2->SetPosition(gfx::PointF(5.f, 20.f));
-    scrollable_child_2->SetHaveWheelEventHandlers(true);
+    scrollable_child_2->SetWheelEventProperties(
+        EventListenerProperties::BLOCKING);
     scrollable_child_2->SetHaveScrollEventHandlers(true);
     scrollable_child_clip_2->AddChild(std::move(scrollable_child_2));
     root_child->AddChild(std::move(scrollable_child_clip_2));