Revert of Run smooth scroll animations on the compositor when possible

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

Index: third_party/WebKit/Source/core/input/EventHandler.cpp
diff --git a/third_party/WebKit/Source/core/input/EventHandler.cpp b/third_party/WebKit/Source/core/input/EventHandler.cpp
index eb37e33a061d1157dc81cc17d431b2491895aabd..a098b727022b9845d30d6aeb9f0bc9c0d2fac9b4 100644
--- a/third_party/WebKit/Source/core/input/EventHandler.cpp
+++ b/third_party/WebKit/Source/core/input/EventHandler.cpp
@@ -2036,14 +2036,14 @@
     if (!view)
         return WebInputEventResult::NotHandled;
     if (ScrollAnimatorBase* scrollAnimator = view->existingScrollAnimator())
-        scrollAnimator->cancelAnimation();
+        scrollAnimator->cancelAnimations();
     const FrameView::ScrollableAreaSet* areas = view->scrollableAreas();
     if (!areas)
         return WebInputEventResult::NotHandled;
     for (const ScrollableArea* scrollableArea : *areas) {
         ScrollAnimatorBase* animator = scrollableArea->existingScrollAnimator();
         if (animator)
-            animator->cancelAnimation();
+            animator->cancelAnimations();
     }
     return WebInputEventResult::NotHandled;
 }