Remove certain computed values from output style

Summary: Remove output properties from computed styles as they will be computed to their output values before we can read them. Only include them if they are explicitly set by the user.

Reviewed By: IanChilds

Differential Revision: D3770917

fbshipit-source-id: e55996cf8744073496debea19c36a188d2e5086c

gentest/gentest.js

@@ -93,8 +93,20 @@ function setupTestTree(node, nodeName, parentName, index) {
   ];
 
   for (var style in node.style) {
+
+    // Skip position info for root as it messes up tests
+    if (node.declaredStyle[style] === "" &&
+        (style == 'position' ||
+         style == 'left' ||
+         style == 'top' ||
+         style == 'right' ||
+         style == 'bottom' ||
+         style == 'width' ||
+         style == 'height')) {
+      continue;
+    }
+
     if (node.style[style] !== getDefaultStyleValue(style)) {
-      var TODO = '';
       switch (style) {
         case 'direction':
           lines.push('CSSNodeSetDirection(' + nodeName + ', ' +
@@ -337,6 +349,7 @@ function calculateTree(root) {
       height: child.offsetHeight,
       children: calculateTree(child),
       style: getCSSLayoutStyle(child),
+      declaredStyle: child.style,
     });
   }