Communicate whether passive event listeners exist to cc.

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index 560df10a90961065e4cdb7e918e0332a2b8cb9a4..c412ba9eb155cae3157ba1532167cd5a98536037 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -1333,7 +1333,11 @@ class LayerTreeHostTestCommit : public LayerTreeHostTest {
   void BeginTest() override {
     layer_tree_host()->SetViewportSize(gfx::Size(20, 20));
     layer_tree_host()->set_background_color(SK_ColorGRAY);
-    layer_tree_host()->SetHaveWheelEventHandlers(true);
+    layer_tree_host()->SetEventListenerProperties(
+        EventListenerClass::kMouseWheel, EventListenerProperties::kPassive);
+    layer_tree_host()->SetEventListenerProperties(
+        EventListenerClass::kTouch,
+        EventListenerProperties::kBlocking | EventListenerProperties::kPassive);
     layer_tree_host()->SetHaveScrollEventHandlers(true);
 
     PostSetNeedsCommitToMainThread();
@@ -1342,7 +1346,13 @@ class LayerTreeHostTestCommit : public LayerTreeHostTest {
   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
     EXPECT_EQ(gfx::Size(20, 20), impl->DrawViewportSize());
     EXPECT_EQ(SK_ColorGRAY, impl->active_tree()->background_color());
-    EXPECT_TRUE(impl->active_tree()->have_wheel_event_handlers());
+    EXPECT_EQ(EventListenerProperties::kPassive,
+              impl->active_tree()->event_listener_properties(
+                  EventListenerClass::kMouseWheel));
+    EXPECT_EQ(
+        EventListenerProperties::kBlocking | EventListenerProperties::kPassive,
+        impl->active_tree()->event_listener_properties(
+            EventListenerClass::kTouch));
     EXPECT_TRUE(impl->active_tree()->have_scroll_event_handlers());
 
     EndTest();