Convert some repaint tests into ref tests

third_party/WebKit/LayoutTests/fast/repaint/position-change-keeping-geometry-expected.html

Index: third_party/WebKit/LayoutTests/fast/repaint/position-change-keeping-geometry-expected.html
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/spv2/position-change-keeping-geometry-expected.html b/third_party/WebKit/LayoutTests/fast/repaint/position-change-keeping-geometry-expected.html
similarity index 85%
copy from third_party/WebKit/LayoutTests/paint/invalidation/spv2/position-change-keeping-geometry-expected.html
copy to third_party/WebKit/LayoutTests/fast/repaint/position-change-keeping-geometry-expected.html
index e7057499ca0e72a207f165766a131561d2321a05..c71e66b00a2c656d80470f726381249723d0683a 100644
--- a/third_party/WebKit/LayoutTests/paint/invalidation/spv2/position-change-keeping-geometry-expected.html
+++ b/third_party/WebKit/LayoutTests/fast/repaint/position-change-keeping-geometry-expected.html
@@ -15,16 +15,16 @@ div {
 }
 #target1 {
   left: 20px;
-  position: absolute;
+  position: relative;
 }
 #target2 {
   left: 220px;
-  position: absolute;
+  position: fixed;
   z-index: 0;
 }
 #target3 {
   left: 420px;
-  position: fixed;
+  position: absolute;
   z-index: 0;
 }
 </style>
@@ -34,6 +34,3 @@ There should be no invalildations on change of position without actual change of
 <div id="target1"></div>
 <div id="target2"></div>
 <div id="target3"></div>
-<script>
-  target1.style.top = target0.offsetTop + target0.offsetHeight + 'px';
-</script>