Add asADash to Lua for scraping

include/utils/SkLua.h

Index: include/utils/SkLua.h
diff --git a/include/utils/SkLua.h b/include/utils/SkLua.h
index 9a1ebfdebb3842ce82ca19fe4baf00b5a9ea95d2..0b1d7040f0c7a14f8a22f1cb677ed246d460ac4d 100644
--- a/include/utils/SkLua.h
+++ b/include/utils/SkLua.h
@@ -10,6 +10,7 @@
 
 #include "SkClipStack.h"
 #include "SkColor.h"
+#include "SkPathEffect.h"
 #include "SkScalar.h"
 #include "SkString.h"
 
@@ -51,6 +52,7 @@ public:
     void pushScalar(SkScalar, const char tableKey[] = NULL);
     void pushRect(const SkRect&, const char tableKey[] = NULL);
     void pushRRect(const SkRRect&, const char tableKey[] = NULL);
+    void pushDash(const SkPathEffect::DashInfo&, const char tableKey[] = NULL);
     void pushMatrix(const SkMatrix&, const char tableKey[] = NULL);
     void pushPaint(const SkPaint&, const char tableKey[] = NULL);
     void pushPath(const SkPath&, const char tableKey[] = NULL);