[CSS Grid Layout] New alignment related repaint layout tests.

LayoutTests/fast/repaint/align-items-overflow-change.html

Index: LayoutTests/fast/repaint/align-items-overflow-change.html
diff --git a/LayoutTests/fast/repaint/align-items-overflow-change.html b/LayoutTests/fast/repaint/align-items-overflow-change.html
index 433d7a84ee58492398d046bb27dca891b0d6c547..3d86452b175e58f3e0559b23916acfe91c199028 100644
--- a/LayoutTests/fast/repaint/align-items-overflow-change.html
+++ b/LayoutTests/fast/repaint/align-items-overflow-change.html
@@ -12,7 +12,7 @@ body {
 }
 #container {
   display: grid;
-  grid: 100px 100px / 150px 150px;
+  grid: 200px / 150px 150px;
   align-items: end true;
   width: 200px;
   height: 300px;
@@ -22,22 +22,19 @@ body {
   grid-row: 1;
   grid-column: 1;
   background-color: green;
-  border: solid thin blue;
-  width: 50px;
 }
 .item2 {
-  grid-row: 1;
-  grid-column: 2;
+  grid-row: 2;
+  grid-column: 1;
   background-color: green;
-  border: solid thin blue;
-  width: 50px;
+}
 </style>
-<p style="height: 20px">Tests invalidation on align-items style change. Passes if there is no red.</p>
+<p style="height: 20px">Tests invalidation on align-items style change (just overflow). Passes if there is no red.</p>
 <div id="container">
-  <div class="item1">
-    <div style="height: 200px"></div>
-  </div>
-  <div class="item2">
-    <div style="height: 150px"></div>
-  </div>
+    <div class="item1">
+        <div style="height: 200px"></div>
+    </div>
+    <div class="item2">
+        <div style="height: 100px"></div>
+    </div>
 </div>