Bug 1235970 - Disable resizing of textarea in mochitest test_bug582181-2 to work around unreliable Gtk3 rendering of the resize grabber. r=dholbert

layout/base/tests/test_bug582181-2.html

@@ -15,7 +15,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=582181
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=582181">Mozilla Bug 582181</a>
 <p id="display"></p>
 <div id="content" dir="rtl">
-<textarea rows="5" id="testInput">Blah blah
+<textarea rows="5" id="testInput" style="resize:none">Blah blah
 فلان فلان
 &lt;ref&gt;ooo&lt;/ref&gt;
 &lt;references /&gt;</textarea>