add JSONP option to output of skpdiff

R=bsalomon@google.com

Review URL: https://codereview.chromium.org/18648002

git-svn-id: http://skia.googlecode.com/svn/trunk@9907 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/skpdiff/SkDiffContext.h b/experimental/skpdiff/SkDiffContext.h
index 545b515..141da09 100644
--- a/experimental/skpdiff/SkDiffContext.h
+++ b/experimental/skpdiff/SkDiffContext.h
@@ -85,9 +85,10 @@
      *     ]
      * }
      *
-     * @param stream The stream to output the diff to
+     * @param stream   The stream to output the diff to
+     * @param useJSONP True to adding padding to the JSON output to make it cross-site requestable.
      */
-    void outputRecords(SkWStream& stream);
+    void outputRecords(SkWStream& stream, bool useJSONP);
 
 private:
     struct DiffData {