Create MouseEventManager and EventHandlingUtil

third_party/WebKit/Source/core/input/ScrollManager.cpp

Index: third_party/WebKit/Source/core/input/ScrollManager.cpp
diff --git a/third_party/WebKit/Source/core/input/ScrollManager.cpp b/third_party/WebKit/Source/core/input/ScrollManager.cpp
index 33e6f466a55117bd01b7eccd00d9d9514b221e3b..7773cbc93c4665a4e5b0a464f79a7e9270153791 100644
--- a/third_party/WebKit/Source/core/input/ScrollManager.cpp
+++ b/third_party/WebKit/Source/core/input/ScrollManager.cpp
@@ -11,6 +11,7 @@
 #include "core/frame/TopControls.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/input/EventHandler.h"
+#include "core/input/EventHandlingUtil.h"
 #include "core/layout/LayoutPart.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/page/AutoscrollController.h"
@@ -404,7 +405,7 @@ WebInputEventResult ScrollManager::handleGestureScrollEvent(const PlatformGestur
             DispatchEventResult gestureDomEventResult = eventTarget->dispatchEvent(gestureDomEvent);
             if (gestureDomEventResult != DispatchEventResult::NotCanceled) {
                 DCHECK(gestureDomEventResult != DispatchEventResult::CanceledByEventHandler);
-                return EventHandler::toWebInputEventResult(gestureDomEventResult);
+                return EventHandlingUtil::toWebInputEventResult(gestureDomEventResult);
             }
         }
     }