Bug 580983. Use path instead of rect to eliminate ambiguity about which rect is being hit.

--HG--
extra : rebase_source : 9608b39c80a8a7a1b88c61db1ebd5cfa21e7ff09

content/svg/content/test/test_pointer-events-2.xhtml

@@ -54,7 +54,7 @@ function run()
     <circle id="circle" cx="50%" cy="50%" r="1" stroke-width="1000" fill="black" pointer-events="all"/>
     <foreignObject id="fo" x="200" y="50" width="50" height="50" clip-path="url(#clip)">
       <svg>
-        <rect width="100%" height="100%" fill="green"/>
+        <path d="M0,0 H50 V50 H0 Z" fill="green"/>
       </svg>
     </foreignObject>
   </svg>