Make unicode-bidi:isolate the default for block elements instead of unicode-bidi:embed

Source/core/css/html.css

Index: Source/core/css/html.css
diff --git a/Source/core/css/html.css b/Source/core/css/html.css
index bd8fdf3527da6d9855c1c504aecb7af52693e83c..a0c2d44044deddbce0fa9f6c6c65b34a06b8e379 100644
--- a/Source/core/css/html.css
+++ b/Source/core/css/html.css
@@ -1106,10 +1106,6 @@ template {
     display: none
 }
 
-bdi, output {
-    unicode-bidi: -webkit-isolate;
-}
-
 bdo {
     unicode-bidi: bidi-override;
 }
@@ -1118,6 +1114,14 @@ textarea[dir=auto] {
     unicode-bidi: -webkit-plaintext;
 }
 
+address, blockquote, center, div, figure, figcaption, footer, form,
+header, hr, legend, listing, p, plaintext, pre, summary, xmp, article,
+aside, h1, h2, h3, h4, h5, h6, hgroup, main, nav, section, table, caption,
+colgroup, col, thead, tbody, tfoot, tr, td, th, dir, dd, dl, dt, menu,
+ol, ul, li, bdi, output {
+    unicode-bidi: -webkit-isolate;
+}
+
 /* page */
 
 @page {