[CSS Grid Layout] Rename grid-{rows|columns} to grid-definition-{rows|columns}

LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html

Index: LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html
diff --git a/LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html b/LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html
index 2976ef98164cccdce1078253938acfbe9c9ccb98..63ba1bc6dcdb1fa805fb99aee37f39b43663ee19 100755
--- a/LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html
+++ b/LayoutTests/fast/css-grid-layout/grid-preferred-logical-widths.html
@@ -9,31 +9,31 @@
 <link href="../css-intrinsic-dimensions/resources/width-keyword-classes.css" rel=stylesheet>
 <style>
 .gridMinContentFixed {
-    grid-columns: minmax(-webkit-min-content, 40px) minmax(-webkit-min-content, 40px);
-    grid-rows: 10px;
+    grid-definition-columns: minmax(-webkit-min-content, 40px) minmax(-webkit-min-content, 40px);
+    grid-definition-rows: 10px;
     font: 10px/1 Ahem;
 }
 
 .gridFixedMinContent {
-    grid-columns: minmax(30px, -webkit-min-content) minmax(30px, -webkit-min-content);
-    grid-rows: 10px;
+    grid-definition-columns: minmax(30px, -webkit-min-content) minmax(30px, -webkit-min-content);
+    grid-definition-rows: 10px;
     font: 10px/1 Ahem;
 }
 
 .gridFixedMaxContent {
-    grid-columns: minmax(40px, -webkit-max-content) minmax(40px, -webkit-max-content);
-    grid-rows: 10px;
+    grid-definition-columns: minmax(40px, -webkit-max-content) minmax(40px, -webkit-max-content);
+    grid-definition-rows: 10px;
     font: 10px/1 Ahem;
 }
 
 .gridFixedFixed {
-    grid-columns: minmax(30px, 40px) minmax(30px, 40px);
-    grid-rows: 10px;
+    grid-definition-columns: minmax(30px, 40px) minmax(30px, 40px);
+    grid-definition-rows: 10px;
 }
 
 .gridAutoContent {
-    grid-columns: auto auto;
-    grid-rows: 10px;
+    grid-definition-columns: auto auto;
+    grid-definition-rows: 10px;
     font: 10px/1 Ahem;
 }
 </style>