Convert some flexbox tests to testharness.js

third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html

Index: third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html
diff --git a/third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html b/third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html
index 35c5978779f6b9af593bb4dbaef737746a3ca212..87f9b101ba8288a09c69212d51a7538fcb39ef2b 100644
--- a/third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html
+++ b/third_party/WebKit/LayoutTests/css3/flexbox/flex-flow-initial.html
@@ -13,15 +13,19 @@
   flex-direction: initial;
 }
 </style>
+<p>Tests that 'initial' is handled correctly for the flex-flow shorthand.</p>
+<div id="log"></div>
 <span id="test1"></span>
 <span id="test2"></span>
-<script src="../../resources/js-test.js"></script>
+<script src="../../resources/testharness.js"></script>
+<script src="../../resources/testharnessreport.js"></script>
 <script>
-description("Tests that 'initial' is handled correctly for the flex-flow shorthand.");
 value1 = window.getComputedStyle(test1).flexDirection;
 value2 = window.getComputedStyle(test2).flexDirection;
-shouldBeEqualToString('window.getComputedStyle(test1).flexDirection', 'row');
-shouldBeEqualToString('window.getComputedStyle(test2).flexDirection', 'row');
+test(function() {
+assert_equals(window.getComputedStyle(test1).flexDirection, "row");
+assert_equals(window.getComputedStyle(test2).flexDirection, "row");
+}, "initial value is correct");
 if (window.testRunner)
    testRunner.dumpAsText();
 </script>