Refactoring source image usage in CanvasRenderingContext2D

LayoutTests/fast/dom/gc-9.html

Index: LayoutTests/fast/dom/gc-9.html
diff --git a/LayoutTests/fast/dom/gc-9.html b/LayoutTests/fast/dom/gc-9.html
index bf306d17c58dc94593abc228347c8d3a9e4828f2..22719afa545fd594586e132b76721860755709fe 100644
--- a/LayoutTests/fast/dom/gc-9.html
+++ b/LayoutTests/fast/dom/gc-9.html
@@ -121,7 +121,7 @@ var objectsToTest = [
     [ "document.getElementsByTagName('body')", "allow custom" ], // NodeList
     [ "document.getElementsByTagName('canvas')[0].getContext('2d')", "allow custom" ], // CanvasRenderingContext2D
     [ "document.getElementsByTagName('canvas')[0].getContext('2d').createLinearGradient(0, 0, 0, 0)" ], // CanvasGradient
-    [ "document.getElementsByTagName('canvas')[0].getContext('2d').createPattern(new Image(), 'no-repeat')" ], // CanvasPattern
+    [ "document.getElementsByTagName('canvas')[0].getContext('2d').createPattern(document.getElementsByTagName('canvas')[0], 'no-repeat')" ], // CanvasPattern

[Stephen White, 2014/02/27 18:53:41]

Tangentially: should we/do we have a test to check recursive canvas pattern
draws? (ie., creating a pattern from a canvas, and drawing that to the same
canvas). There's a special case for direct canvas-to-canvas drawing (makes a
copy); we should check that patterns work too.

     [ "document.getElementsByTagName('select')[0].options", "allow custom" ],
     [ "document.body.childNodes", "allow custom" ],