Unprefix Flexbox

LayoutTests/fast/css/getComputedStyle/resources/property-names.js

 // We only test properties that are exposed in all ports.
 var propertiesToTest = {
-    "-webkit-align-content": true,
-    "-webkit-align-items": true,
-    "-webkit-align-self": true,
     "-webkit-animation-delay": true,
     "-webkit-animation-direction": true,
     "-webkit-animation-duration": true,
     "-webkit-animation-fill-mode": true,
     "-webkit-animation-iteration-count": true,
     "-webkit-animation-name": true,
     "-webkit-animation-play-state": true,
     "-webkit-animation-timing-function": true,
     "-webkit-appearance": true,
     "-webkit-backface-visibility": true,
@@ skipping 21 matching lines @@
     "-webkit-column-break-after": true,
     "-webkit-column-break-before": true,
     "-webkit-column-break-inside": true,
     "-webkit-column-count": true,
     "-webkit-column-gap": true,
     "-webkit-column-rule-color": true,
     "-webkit-column-rule-style": true,
     "-webkit-column-rule-width": true,
     "-webkit-column-span": true,
     "-webkit-column-width": true,
-    "-webkit-flex-direction": true,
-    "-webkit-flex-wrap": true,
     "-webkit-font-kerning": true,
     "-webkit-font-smoothing": true,
     "-webkit-font-variant-ligatures": true,
     "-webkit-grid-column": true,
     "-webkit-grid-row": true,
     "-webkit-highlight": true,
     "-webkit-hyphenate-character": true,
     "-webkit-hyphenate-limit-after": true,
     "-webkit-hyphenate-limit-before": true,
     "-webkit-hyphenate-limit-lines": true,
     "-webkit-hyphens": true,
-    "-webkit-justify-content": true,
     "-webkit-line-align": true,
     "-webkit-line-box-contain": true,
     "-webkit-line-break": true,
     "-webkit-line-clamp": true,
     "-webkit-line-grid": true,
     "-webkit-line-snap": true,
     "-webkit-locale": true,
     "-webkit-margin-after-collapse": true,
     "-webkit-margin-before-collapse": true,
     "-webkit-marquee-direction": true,
     "-webkit-marquee-increment": true,
     "-webkit-marquee-repetition": true,
     "-webkit-marquee-style": true,
     "-webkit-mask-attachment": true,
     "-webkit-mask-box-image": true,
     "-webkit-mask-box-image-outset": true,
     "-webkit-mask-box-image-repeat": true,
     "-webkit-mask-box-image-slice": true,
     "-webkit-mask-box-image-source": true,
     "-webkit-mask-box-image-width": true,
     "-webkit-mask-clip": true,
     "-webkit-mask-composite": true,
     "-webkit-mask-image": true,
     "-webkit-mask-origin": true,
     "-webkit-mask-position": true,
     "-webkit-mask-repeat": true,
     "-webkit-mask-size": true,
     "-webkit-nbsp-mode": true,
-    "-webkit-order": true,
     "-webkit-perspective": true,
     "-webkit-perspective-origin": true,
     "-webkit-print-color-adjust": true,
     "-webkit-rtl-ordering": true,
     "-webkit-svg-shadow": true,
     "-webkit-text-combine": true,
     "-webkit-text-decorations-in-effect": true,
     "-webkit-text-emphasis-color": true,
     "-webkit-text-emphasis-position": true,
     "-webkit-text-emphasis-style": true,
     "-webkit-text-fill-color": true,
     "-webkit-text-orientation": true,
     "-webkit-text-security": true,
     "-webkit-text-stroke-color": true,
     "-webkit-text-stroke-width": true,
     "-webkit-transform": true,
     "-webkit-transform-origin": true,
     "-webkit-transform-style": true,
     "-webkit-transition-delay": true,
     "-webkit-transition-duration": true,
     "-webkit-transition-property": true,
     "-webkit-transition-timing-function": true,
     "-webkit-user-drag": true,
     "-webkit-user-modify": true,
     "-webkit-user-select": true,
     "-webkit-writing-mode": true,
+    "align-content": true,
+    "align-items": true,
+    "align-self": true,
     "alignment-baseline": true,
     "background-attachment": true,
     "background-clip": true,
     "background-color": true,
     "background-image": true,
     "background-origin": true,
     "background-position": true,
     "background-repeat": true,
     "background-size": true,
     "baseline-shift": true,
@@ skipping 33 matching lines @@
     "color-rendering": true,
     "cursor": true,
     "direction": true,
     "display": true,
     "dominant-baseline": true,
     "empty-cells": true,
     "fill": true,
     "fill-opacity": true,
     "fill-rule": true,
     "filter": true,
+    "flex-direction": true,
+    "flex-wrap": true,
     "float": true,
     "flood-color": true,
     "flood-opacity": true,
     "font-size": true,
     "font-style": true,
     "font-variant": true,
     "font-weight": true,
     "glyph-orientation-horizontal": true,
     "glyph-orientation-vertical": true,
     "height": true,
     "image-rendering": true,
+    "justify-content": true,
     "kerning": true,
     "left": true,
     "letter-spacing": true,
     "lighting-color": true,
     "line-height": true,
     "list-style-image": true,
     "list-style-position": true,
     "list-style-type": true,
     "margin-bottom": true,
     "margin-left": true,
     "margin-right": true,
     "margin-top": true,
     "marker-end": true,
     "marker-mid": true,
     "marker-start": true,
     "mask": true,
     "max-height": true,
     "max-width": true,
     "min-height": true,
     "min-width": true,
     "opacity": true,
+    "order": true,
     "orphans": true,
     "outline-color": true,
     "outline-style": true,
     "outline-width": true,
     "overflow-x": true,
     "overflow-y": true,
     "padding-bottom": true,
     "padding-left": true,
     "padding-right": true,
     "padding-top": true,
@@ skipping 45 matching lines @@
 // There properties don't show up when iterating a computed style object,
 // but we do want to dump their values in tests.
 var hiddenComputedStyleProperties = [
     "background-position-x",
     "background-position-y",
     "border-spacing",
     "overflow",
     "-webkit-mask-position-x",
     "-webkit-mask-position-y",
 ];