Source/WebCore:
Remove support for X-Frame-Options in `<meta>`
https://bugs.webkit.org/show_bug.cgi?id=156625
<rdar://problem/25748714>

Rubberstamped by Darin Adler.

* dom/Document.cpp:
(WebCore::Document::processHttpEquiv): Revise messaging based on Darin's comments.

LayoutTests:
Crash in ElementDescendantIterator::operator--() when calling m_ancestorSiblingStack.last()
https://bugs.webkit.org/show_bug.cgi?id=156715
<rdar://problem/25750864>

Patch by Chris Dumez <cdumez@apple.com> on 2016-04-18
Reviewed by Antti Koivisto.

Add regression test that reproduced the crash.

* fast/dom/collection-backward-traversal-crash-expected.txt: Added.
* fast/dom/collection-backward-traversal-crash.html: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@199696 268f45cc-cd09-0410-ab3c-d52691b4dbfc
8 files changed