css-pseudo: ::placeholder should not support 'writing-mode', 'directi…

…on', and 'text-orientation'

css-pseudo: ::placeholder should not support 'writing-mode', 'direction', and 'text-orientation'

https://bugs.webkit.org/show_bug.cgi?id=244982

Reviewed by Alan Bujtas.

Merge - https://chromium.googlesource.com/chromium/src.git/+/68c32d4e9fe24e25e672095253e0f0b2e709ecf4%5E%21/

It is to align Webkit behavior with Web-Spec:

https://drafts.csswg.org/css-pseudo-4/#placeholder-pseudo

All properties that apply to the ::first-line pseudo-element also apply to the ::placeholder pseudo-element.

https://drafts.csswg.org/css-pseudo-4/#first-line-styling

User agents may apply other properties as well except for the following excluded properties:
- writing-mode
- direction
- text-orientation

* Source/WebCore/css/html.css - Updated ::placeholder to add 'direction', 'text-orientation' and 'writing-mode'

Canonical link: https://commits.webkit.org/254416@main

Source/WebCore/css/html.css

@@ -762,7 +762,10 @@ textarea {
 ::placeholder {
     -webkit-text-security: none;
     color: darkGray;
+    direction: inherit !important;
     pointer-events: none !important;
+    text-orientation: inherit !important;
+    writing-mode: inherit !important;
 }
 
 input::placeholder {