Bug 655877 - Part 46: Test fix due to subpixel AA not being used for SVG text with strokes. r=longsonr

layout/reftests/svg/text-layout-06-ref.svg

@@ -5,6 +5,9 @@
 <svg xmlns="http://www.w3.org/2000/svg">
   <title>Reference to check fill and stroke handling</title>
 
-  <text x="50" y="80" font-size="80" fill="blue" stroke="none">A B</text>
+  <linearGradient id="transparent">
+    <stop stop-opacity="0"/>
+  </linearGradient>
+  <text x="50" y="80" font-size="80" fill="blue" stroke="url(#transparent)">A B</text>
   <text x="50" y="80" font-size="80" fill="none" stroke="yellow" stroke-width="2">A B</text>
 </svg>