If an element has unicode-bidi: plaintext and no strong directional characters. By default it shoul…

Source/core/html/HTMLElement.cpp

Index: Source/core/html/HTMLElement.cpp
diff --git a/Source/core/html/HTMLElement.cpp b/Source/core/html/HTMLElement.cpp
index 30d607bf520724a36dccf3ae0248bb088b6d0f86..9e3d7d883de130761532826f1958c47d0ec12a75 100644
--- a/Source/core/html/HTMLElement.cpp
+++ b/Source/core/html/HTMLElement.cpp
@@ -46,6 +46,7 @@
 #include "core/html/HTMLBRElement.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLTemplateElement.h"
+#include "core/html/HTMLTextAreaElement.h"
 #include "core/html/HTMLTextFormControlElement.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/loader/FrameLoader.h"
@@ -846,7 +847,7 @@ TextDirection HTMLElement::directionalityIfhasDirAutoAttribute(bool& isAuto) con
 
 TextDirection HTMLElement::directionality(Node** strongDirectionalityTextNode) const
 {
-    if (isHTMLTextFormControlElement(this)) {
+    if (isHTMLTextFormControlElement(this) && !isHTMLTextAreaElement(this)) {

[eseidel, 2013/08/22 23:32:12]

Can we get rid of this code for all other elements eventually?

Also, I would add a comment explaining why textarea is excluded here, noting
that it uses plaintext instead in html.css.

         HTMLTextFormControlElement* textElement = toHTMLTextFormControlElement(const_cast<HTMLElement*>(this));
         bool hasStrongDirectionality;
         Unicode::Direction textDirection = textElement->value().defaultWritingDirection(&hasStrongDirectionality);