add drawtext to lua

git-svn-id: http://skia.googlecode.com/svn/trunk@9477 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleLua.cpp b/samplecode/SampleLua.cpp
index 1ad89f9..fb40087 100644
--- a/samplecode/SampleLua.cpp
+++ b/samplecode/SampleLua.cpp
@@ -49,6 +49,11 @@
     "       path:quadTo(rndX(), rndY(), rndX(), rndY());"
     "   end "
     "   canvas:drawPath(path, path_paint);"
+    ""
+    "   paint:setTypeface(Sk.newTypeface('Times', 1));"
+    "   paint:setColor{a = 1, r=0, g=0, b = 1};"
+    "   paint:setTextSize(70);"
+    "   canvas:drawText('Hamburgefons', 50, 200, paint);"
     "end "
     ""
     "function onDrawContent(canvas) "