Add ScrollDirectionPhysical enum in Scroll types.

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index e707d9a03c44ac1db92742f0f7abda0bbeb1c381..661b449fc05cc6d06e8f2a52960fdff708228d6e 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -526,12 +526,12 @@ void Element::applyScroll(ScrollState& scrollState)
         LayoutBox* curBox = layoutObject()->enclosingBox();
         // FIXME: Native scrollers should only consume the scroll they
         // apply. See crbug.com/457765.
-        if (deltaX && curBox->scroll(ScrollLeft, ScrollByPrecisePixel, deltaX)) {
+        if (deltaX && curBox->scroll(ScrollPhysicalLeft, ScrollByPrecisePixel, deltaX)) {
             scrollState.consumeDeltaNative(scrollState.deltaX(), 0);
             scrolled = true;
         }
 
-        if (deltaY && curBox->scroll(ScrollUp, ScrollByPrecisePixel, deltaY)) {
+        if (deltaY && curBox->scroll(ScrollPhysicalUp, ScrollByPrecisePixel, deltaY)) {
             scrollState.consumeDeltaNative(0, scrollState.deltaY());
             scrolled = true;
         }