[CSS Grid Layout] Rename grid-definition-{columns|rows} to match the new syntax

LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html

Index: LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html
diff --git a/LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html b/LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html
index 5b5245033f8d8dfad68de3ce226560075c9e0a04..046f9c3ca11b1468544a5e8ce3a04fd1438f2b00 100644
--- a/LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html
+++ b/LayoutTests/fast/css-grid-layout/flex-content-resolution-columns.html
@@ -7,24 +7,24 @@ if (window.testRunner)
 <link href="resources/grid.css" rel="stylesheet">
 <style>
 .gridMinFlexContent {
-    grid-definition-columns: minmax(1fr, 50px);
-    grid-definition-rows: 50px;
+    grid-template-columns: minmax(1fr, 50px);
+    grid-template-rows: 50px;
 }
 .gridMaxFlexContent {
-    grid-definition-columns: minmax(30px, 2fr);
-    grid-definition-rows: 50px;
+    grid-template-columns: minmax(30px, 2fr);
+    grid-template-rows: 50px;
 }
 .gridTwoMaxFlexContent {
-    grid-definition-columns: minmax(10px, 1fr) minmax(10px, 2fr);
-    grid-definition-rows: 50px;
+    grid-template-columns: minmax(10px, 1fr) minmax(10px, 2fr);
+    grid-template-rows: 50px;
 }
 .gridTwoDoubleMaxFlexContent {
-    grid-definition-columns: minmax(10px, 0.5fr) minmax(10px, 2fr);
-    grid-definition-rows: 50px;
+    grid-template-columns: minmax(10px, 0.5fr) minmax(10px, 2fr);
+    grid-template-rows: 50px;
 }
 .gridIgnoreSecondGridItem {
-    grid-definition-columns: minmax(300px, 3fr) minmax(150px, 1fr);
-    grid-definition-rows: 50px;
+    grid-template-columns: minmax(300px, 3fr) minmax(150px, 1fr);
+    grid-template-rows: 50px;
 }
 </style>
 <script src="../../resources/check-layout.js"></script>