Convert some text-based-repaint tests for spv2

LayoutTests/paint/invalidation/spv2/canvas-resize-expected.html

Index: LayoutTests/paint/invalidation/spv2/canvas-resize-expected.html
diff --git a/LayoutTests/fast/repaint/canvas-resize.html b/LayoutTests/paint/invalidation/spv2/canvas-resize-expected.html
similarity index 70%
copy from LayoutTests/fast/repaint/canvas-resize.html
copy to LayoutTests/paint/invalidation/spv2/canvas-resize-expected.html
index 5cc566a7235be73275f94a20f249691e90a5de26..0ba42df5a13fd5d4177f9c71e3a966d97ba3e8d2 100644
--- a/LayoutTests/fast/repaint/canvas-resize.html
+++ b/LayoutTests/paint/invalidation/spv2/canvas-resize-expected.html
@@ -2,7 +2,7 @@
 <style>
 canvas {
   position: absolute;
-  width: 600px;
+  width: 500px;
   height: 500px;
   top: 50px;
   left: 50px;
@@ -11,13 +11,7 @@ canvas {
 Tests paint invalidation of canvas when it's resized. Passes if there is a whole green circle.
 <canvas id="canvas" width="500" height="500"></canvas>
 
-<script src="resources/text-based-repaint.js"></script>
 <script>
-function repaintTest() {
-  document.getElementById('canvas').style.width = '500px';
-}
-onload = runRepaintTest;
-
 var ctx = document.getElementById('canvas').getContext('2d');
 ctx.beginPath();
 ctx.arc(250, 250, 250, 0, 2 * Math.PI);