Require the entire document-tree of an SVGImage to be single-origin

LayoutTests/canvas/feimage-with-foreignobject-taint-canvas-2.html

Index: LayoutTests/canvas/feimage-with-foreignobject-taint-canvas-2.html
diff --git a/LayoutTests/canvas/feimage-with-foreignobject-taint-canvas.html b/LayoutTests/canvas/feimage-with-foreignobject-taint-canvas-2.html
similarity index 91%
copy from LayoutTests/canvas/feimage-with-foreignobject-taint-canvas.html
copy to LayoutTests/canvas/feimage-with-foreignobject-taint-canvas-2.html
index bcee2f65371d0fe65c6c462d18ee002817da8463..dbd6f340148ab4f385ec4344fbace71ab5a9571d 100644
--- a/LayoutTests/canvas/feimage-with-foreignobject-taint-canvas.html
+++ b/LayoutTests/canvas/feimage-with-foreignobject-taint-canvas-2.html
@@ -11,7 +11,7 @@ function runTest() {
   context = canvas.getContext('2d');
 
   image = document.createElement('img');
-  image.setAttribute('src', 'resources/svg-with-feimage-with-foreignobject.svg');
+  image.setAttribute('src', 'resources/svg-with-multiple-feimage-one-with-foreignobject.svg');
   image.onload = function() {
     pattern = context.createPattern(image, 'repeat');
     context.fillStyle = pattern;