Unprefix flexbox tests.

LayoutTests/css3/flexbox/flex-flow-padding.html

Index: LayoutTests/css3/flexbox/flex-flow-padding.html
diff --git a/LayoutTests/css3/flexbox/flex-flow-padding.html b/LayoutTests/css3/flexbox/flex-flow-padding.html
index 598bb807bcc469d6b496559ef21dcdc6313ed451..979c1917da773e69168fed219f9ef3c348f1138a 100644
--- a/LayoutTests/css3/flexbox/flex-flow-padding.html
+++ b/LayoutTests/css3/flexbox/flex-flow-padding.html
@@ -8,7 +8,7 @@
     display: inline-block;
 }
 .flexbox {
-    display: -webkit-flex;
+    display: flex;
     background-color: grey;
     width: 100px;
     height: 100px;
@@ -35,16 +35,16 @@
     -webkit-writing-mode: vertical-lr;
 }
 .row {
-    -webkit-flex-flow: row;    
+    flex-flow: row;    
 }
 .row-reverse {
-    -webkit-flex-flow: row-reverse;
+    flex-flow: row-reverse;
 }
 .column {
-    -webkit-flex-flow: column;
+    flex-flow: column;
 }
 .column-reverse {
-    -webkit-flex-flow: column-reverse;
+    flex-flow: column-reverse;
 }
 .physical {
     padding: 10px 20px 30px 40px;
@@ -246,7 +246,7 @@ writingModes.forEach(function(writingMode) {
                 container.setAttribute('data-expected-height', expectations.containersize[1]);
 
                 container.innerHTML = '\n<div class="flexbox ' + flexboxClassName + '">\n' +
-                    '<div style="-webkit-flex: 1 auto; width: 20px; height: 20px;" ' + asString(expectations['flexitem' + flexFlow.replace('-reverse', '')]) + '>\n' +
+                    '<div style="flex: 1 auto; width: 20px; height: 20px;" ' + asString(expectations['flexitem' + flexFlow.replace('-reverse', '')]) + '>\n' +
                         '<div style="width:100%; height:100%" ' + asString(expectations['child' + flexFlow.replace('-reverse', '')]) + '></div>' +
                     '</div>\n' +
                 '</div>\n';