Added experimental tilt and tiltDirection to the Touch interface

Source/web/WebInputEventConversion.cpp

Index: Source/web/WebInputEventConversion.cpp
diff --git a/Source/web/WebInputEventConversion.cpp b/Source/web/WebInputEventConversion.cpp
index afe7abfce22041ba349fd2e6aff2930b55794b35..0a0dba626c8cec19e06a858e58be13cfa8606ad0 100644
--- a/Source/web/WebInputEventConversion.cpp
+++ b/Source/web/WebInputEventConversion.cpp
@@ -436,6 +436,7 @@ PlatformTouchPointBuilder::PlatformTouchPointBuilder(Widget* widget, const WebTo
     m_screenPos = FloatPoint(point.screenPosition.x, point.screenPosition.y);
     m_radius = scaleSizeToWindow(widget, FloatSize(point.radiusX, point.radiusY));
     m_rotationAngle = point.rotationAngle;
+    m_tilt = point.tilt;
     m_force = point.force;
 }