Communicate whether passive event listeners exist to cc.

third_party/WebKit/Source/core/page/ChromeClient.h

Index: third_party/WebKit/Source/core/page/ChromeClient.h
diff --git a/third_party/WebKit/Source/core/page/ChromeClient.h b/third_party/WebKit/Source/core/page/ChromeClient.h
index 9ae983bc954de8cdc7e4e8ba2e8782b71db4708c..f28f6f53ebd5ed0b1fd9605aef6927bfd4dc8998 100644
--- a/third_party/WebKit/Source/core/page/ChromeClient.h
+++ b/third_party/WebKit/Source/core/page/ChromeClient.h
@@ -35,6 +35,7 @@
 #include "platform/PopupMenu.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
+#include "public/platform/WebEventListenerProperties.h"
 #include "public/platform/WebFocusType.h"
 #include "wtf/Forward.h"
 #include "wtf/PassOwnPtr.h"
@@ -198,9 +199,8 @@ public:
     virtual void clearCompositedSelection() { }
     virtual void updateCompositedSelection(const CompositedSelection&) { }
 
-    virtual void needTouchEvents(bool) = 0;
-    virtual void setHaveWheelEventHandlers(bool) = 0;
-    virtual bool haveWheelEventHandlers() const = 0;
+    virtual void setEventListenerProperties(WebEventListenerClass, WebEventListenerProperties) = 0;
+    virtual WebEventListenerProperties eventListenerProperties(WebEventListenerClass) const = 0;
     virtual void setHaveScrollEventHandlers(bool) = 0;
     virtual bool haveScrollEventHandlers() const = 0;