Add ScrollDirectionPhysical enum in Scroll types.

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 b3010ce4c8a6ba0c95bf9042a085ea3818b86d15..605f2551f7e15eb40952e4bd5cabc40b4b41be46 100644
--- a/Source/core/frame/LocalFrame.cpp
+++ b/Source/core/frame/LocalFrame.cpp
@@ -726,8 +726,8 @@ 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.scroll(ScrollPhysicalLeft, ScrollByPrecisePixel, delta.width());
+    bool scrolledVertical = view.scroll(ScrollPhysicalUp, ScrollByPrecisePixel, delta.height());
     return scrolledHorizontal || scrolledVertical;
 }