Rename ScrollableArea::scroll to userScroll

Source/core/frame/LocalFrame.cpp

Index: Source/core/frame/LocalFrame.cpp
diff --git a/Source/core/frame/LocalFrame.cpp b/Source/core/frame/LocalFrame.cpp
index 5b711fc47e11e041234ce5b1493ea2468f11f840..588d34699a6e22560a4ec4cbead4ffbd57e7a02e 100644
--- a/Source/core/frame/LocalFrame.cpp
+++ b/Source/core/frame/LocalFrame.cpp
@@ -715,8 +715,8 @@ void LocalFrame::removeSpellingMarkersUnderWords(const Vector<String>& words)
 
 static bool scrollAreaOnBothAxes(const FloatSize& delta, ScrollableArea& view)
 {
-    bool scrolledHorizontal = view.scroll(ScrollLeft, ScrollByPrecisePixel, delta.width());
-    bool scrolledVertical = view.scroll(ScrollUp, ScrollByPrecisePixel, delta.height());
+    bool scrolledHorizontal = view.userScroll(ScrollLeft, ScrollByPrecisePixel, delta.width());
+    bool scrolledVertical = view.userScroll(ScrollUp, ScrollByPrecisePixel, delta.height());
     return scrolledHorizontal || scrolledVertical;
 }