Defining new color constat for transparent color
Review URL: https://codereview.appspot.com/6901044

git-svn-id: http://skia.googlecode.com/svn/trunk@6696 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/ninepatchstretch.cpp b/gm/ninepatchstretch.cpp
index 38b6f7d..773a692 100644
--- a/gm/ninepatchstretch.cpp
+++ b/gm/ninepatchstretch.cpp
@@ -34,7 +34,7 @@
 
     SkCanvas canvas(dev);
     dev->unref();
-    canvas.clear(0);
+    canvas.clear(SK_ColorTRANSPARENT);
 
     SkRect r = SkRect::MakeWH(SkIntToScalar(kSize), SkIntToScalar(kSize));
     const SkScalar strokeWidth = SkIntToScalar(6);