[GTK] Various pasteboard tests fail

• Component: WebKitGTK
• Status: RESOLVED DUPLICATE

[Ms2ger (he/him; ⌚ UTC+1/+2)]

editing/pasteboard/copy-without-selection.html
editing/pasteboard/copying-html-strips-javascript-url-and-event-handler.html
editing/pasteboard/data-transfer-get-data-on-copying-pasting-malformed-url-in-same-document.html
editing/pasteboard/data-transfer-get-data-on-pasting-html-uses-blob-url.html
editing/pasteboard/data-transfer-items-add-custom-data.html
editing/pasteboard/data-transfer-set-data-ignore-copied-malformed-url-in-null-origin.html
editing/pasteboard/data-transfer-set-data-sanitize-url-when-copying-in-null-origin.html
editing/pasteboard/data-transfer-set-data-sanitizes-html-when-copying-in-null-origin.html
editing/pasteboard/data-transfer-set-data-sanitizes-html-when-copying.html
editing/pasteboard/dataTransfer-types-pasting-plaintext.html
editing/pasteboard/onpaste-text-html-types.html
editing/pasteboard/pasting-empty-html-falls-back-to-text.html

[Michael Catanzaro]

We need to implement the modern pasteboard API. According to Ryosuke, that means implementing:

 * Pasteboard::typesSafeForBindings()
 * Pasteboard::writeCustomData(const PasteboardCustomData&)
 * Pasteboard::readOrigin()
 * Pasteboard::readStringForCustomData(const String&)

[Michael Catanzaro]

This is a dup of bug #177633, I'll move all associated test expectations there.

*** This bug has been marked as a duplicate of bug 177633 ***