[CSS Grid Layout] Rename gridAutoFlow[Row|Column] to gridAutoFlow[Row|Column]Sparse

LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html

Index: LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html
diff --git a/LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html b/LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html
index 5894b3c1215ca9346cec5a323df920159bfbc27c..46a203c70c1802502e8889f62aabbff534137830 100644
--- a/LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html
+++ b/LayoutTests/fast/css-grid-layout/grid-item-order-auto-flow-resolution.html
@@ -22,14 +22,14 @@
 
     <!-- Step 1, grid item with a major-axis position that is not 'auto'. -->
     <div style="position: relative">
-        <div class="grid gridAutoFlowRow">
+        <div class="grid gridAutoFlowRowDense">
             <div class="sizedToGridArea firstRowAutoColumn" data-offset-x="50" data-offset-y="0" data-expected-width="100" data-expected-height="50"></div>
             <div class="sizedToGridArea firstRowAutoColumn negativeOrder" data-offset-x="0" data-offset-y="0" data-expected-width="50" data-expected-height="50"></div>
         </div>
     </div>
 
     <div style="position: relative">
-        <div class="grid gridAutoFlowRow">
+        <div class="grid gridAutoFlowRowDense">
             <div class="sizedToGridArea firstRowAutoColumn positiveOrder" data-offset-x="50" data-offset-y="0" data-expected-width="100" data-expected-height="50"></div>
             <div class="sizedToGridArea firstRowAutoColumn" data-offset-x="0" data-offset-y="0" data-expected-width="50" data-expected-height="50"></div>
         </div>
@@ -37,14 +37,14 @@
 
     <!-- Step 4.1, grid items with a minor-axis position that is not 'auto'. -->
     <div style="position: relative">
-        <div class="grid gridAutoFlowColumn">
+        <div class="grid gridAutoFlowColumnDense">
             <div class="sizedToGridArea secondRowAutoColumn" data-offset-x="50" data-offset-y="50" data-expected-width="100" data-expected-height="100"></div>
             <div class="sizedToGridArea secondRowAutoColumn negativeOrder" data-offset-x="0" data-offset-y="50" data-expected-width="50" data-expected-height="100"></div>
         </div>
     </div>
 
     <div style="position: relative">
-        <div class="grid gridAutoFlowColumn">
+        <div class="grid gridAutoFlowColumnDense">
             <div class="sizedToGridArea secondRowAutoColumn positiveOrder" data-offset-x="50" data-offset-y="50" data-expected-width="100" data-expected-height="100"></div>
             <div class="sizedToGridArea secondRowAutoColumn" data-offset-x="0" data-offset-y="50" data-expected-width="50" data-expected-height="100"></div>
         </div>
@@ -52,14 +52,14 @@
 
     <!-- Step 4.2, both minor and major-axis position are 'auto'. -->
     <div style="position: relative">
-        <div class="grid gridAutoFlowColumn">
+        <div class="grid gridAutoFlowColumnDense">
             <div class="sizedToGridArea" data-offset-x="0" data-offset-y="50" data-expected-width="50" data-expected-height="100"></div>
             <div class="sizedToGridArea negativeOrder" data-offset-x="0" data-offset-y="0" data-expected-width="50" data-expected-height="50"></div>
         </div>
     </div>
 
     <div style="position: relative">
-        <div class="grid gridAutoFlowColumn">
+        <div class="grid gridAutoFlowColumnDense">
             <div class="sizedToGridArea positiveOrder" data-offset-x="0" data-offset-y="50" data-expected-width="50" data-expected-height="100"></div>
             <div class="sizedToGridArea" data-offset-x="0" data-offset-y="0" data-expected-width="50" data-expected-height="50"></div>
         </div>