Make unicode-bidi:isolate the default for elements with dir attributes

third_party/WebKit/Source/core/html/HTMLElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLElement.cpp b/third_party/WebKit/Source/core/html/HTMLElement.cpp
index 42a3af0e8427bc5ecb101fd51fb4e5f3ecce4145..e54d4128b21a10e7d2943ef3001ffbe3e04ff5a4 100644
--- a/third_party/WebKit/Source/core/html/HTMLElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLElement.cpp
@@ -234,7 +234,7 @@ void HTMLElement::collectStyleForPresentationAttribute(const QualifiedName& name
             else
                 addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, "ltr");
             if (!hasTagName(bdiTag) && !hasTagName(bdoTag) && !hasTagName(outputTag))
-                addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, CSSValueEmbed);
+                addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, CSSValueIsolate);
         }
     } else if (name.matches(XMLNames::langAttr)) {
         mapLanguageAttributeToLocale(value, style);