Rename Path to Path2D

BUG=skia:
R=robertphillips@google.com

Author: jcgregorio@google.com

Review URL: https://codereview.chromium.org/177963005

git-svn-id: http://skia.googlecode.com/svn/trunk@13615 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/SkV8Example/snow.js b/experimental/SkV8Example/snow.js
index f3527db..4640fd6 100644
--- a/experimental/SkV8Example/snow.js
+++ b/experimental/SkV8Example/snow.js
@@ -1,9 +1,9 @@
 var IS_SKV8 = typeof document == "undefined";
-var HAS_PATH = typeof Path != "undefined";
+var HAS_PATH = typeof Path2D != "undefined";
 
 function circlePath(r) {
   if (HAS_PATH) {
-    var p = new Path();
+    var p = new Path2D();
     p.arc(0, 0, r, 0, 2*Math.PI);
     p.closePath();
     return p;