[BiDi] Add support for the BDI element
https://bugs.webkit.org/show_bug.cgi?id=50913

Reviewed by Ryosuke Niwa.

Source/WebCore:

This patch is ridiculously trivial now that we have unicode-bidi: isolate support in WebKit.

Test: css3/bdi-element.html

* css/html.css:
(bdi):

LayoutTests:

* css3/bdi-element.html: Added.
* platform/mac/css3/bdi-element-expected.png: Added.
* platform/mac/css3/bdi-element-expected.txt: Added.

git-svn-id: svn://svn.chromium.org/blink/trunk@94822 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/Source/WebCore/css/html.css b/Source/WebCore/css/html.css
index 58fb989..8d20159 100644
--- a/Source/WebCore/css/html.css
+++ b/Source/WebCore/css/html.css
@@ -992,6 +992,10 @@
     margin-right: 0.4em;
 }
 
+bdi {
+    unicode-bidi: -webkit-isolate;
+}
+
 /* page */
 
 @page {