Implement `direction` property (#906)
1<test name="grid_placement_auto_negative__content_box_ltr" use-rounding="true">
2 <viewport width="max-content" height="max-content"/>
3 <input>
4 <div display="grid" box-sizing="content-box" direction="ltr" width="120px" height="120px" grid-template-rows="40px 40px" grid-template-columns="40px 40px">
5 <div box-sizing="content-box" direction="ltr" grid-row-start="1" grid-column-start="-5"/>
6 <div box-sizing="content-box" direction="ltr"/>
7 <div box-sizing="content-box" direction="ltr" grid-row-start="2"/>
8 </div>
9 </input>
10 <expectations>
11 <node x="0" y="0" width="120" height="120">
12 <node x="0" y="0" width="20" height="40"/>
13 <node x="20" y="0" width="20" height="40"/>
14 <node x="0" y="40" width="20" height="40"/>
15 </node>
16 </expectations>
17</test>