[css-grid] Handle min-content/max-content with orthogonal flows

third_party/WebKit/LayoutTests/fast/css-grid-layout/resources/grid.css

 .grid {
     display: grid;
     background-color: grey;
 }
 
 .indefiniteSizeGrid {
     display: grid;
     background-color: grey;
     width: -webkit-min-content;
     height: auto;
@@ skipping 257 matching lines @@
 }
 
 .verticalRL {
     -webkit-writing-mode: vertical-rl;
 }
 
 .verticalLR {
     -webkit-writing-mode: vertical-lr;
 }
 
+.horizontalBT {
+    -webkit-writing-mode: horizontal-bt;
+}
+
+.horizontalTB {
+    -webkit-writing-mode: horizontal-tb;
+}
+
 .directionRTL {
     direction: rtl;
 }
 
 .directionLTR {
     direction: ltr;
 }