Should be able to scroll text in <input> fields with touch

Source/core/platform/ScrollableArea.cpp

Index: Source/core/platform/ScrollableArea.cpp
diff --git a/Source/core/platform/ScrollableArea.cpp b/Source/core/platform/ScrollableArea.cpp
index 0f02cf04bc2b3ff3a325ea00e11de5e29b5a5752..e9b61b322938f98a72470364ee7ed115be568800 100644
--- a/Source/core/platform/ScrollableArea.cpp
+++ b/Source/core/platform/ScrollableArea.cpp
@@ -82,6 +82,21 @@ void ScrollableArea::setScrollOrigin(const IntPoint& origin)
     }
 }
 
+bool ScrollableArea::touchScroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
+{
+    // For a touch scroll, we don't need the scrollbars to exist (i.e. for an input text field)
+    ScrollbarOrientation orientation;
+    if (direction == ScrollUp || direction == ScrollDown)
+        orientation = VerticalScrollbar;
+    else
+        orientation = HorizontalScrollbar;
+
+    if (direction == ScrollUp || direction == ScrollLeft)
+        multiplier = -multiplier;
+
+    return scrollAnimator()->scroll(orientation, granularity, 1.0f, multiplier);
+}
+
 bool ScrollableArea::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
 {
     ScrollbarOrientation orientation;