https://bugs.webkit.org/show_bug.cgi?id=122640

Reviewed by Andreas Kling.

* html/HTMLElement.cpp:
(WebCore::unicodeBidiAttributeForDirAuto): Take a reference.
(WebCore::HTMLElement::collectStyleForPresentationAttribute): Pass one.
(WebCore::mergeWithNextTextNode): Take a reference to a Text node instead
of a PassRefPtr to a Node. Also removed unnecessary check of parentNode.
Also update to new calling convention for mergeWithNextTextNode.
(WebCore::HTMLElement::setOuterHTML): Use parentElement instead of
parentNode, since Antti says that's the future, and either will work here.
Also use nullptr.
(WebCore::HTMLElement::textToFragment): Fix indentation and use nullptr.
(WebCore::HTMLElement::setOuterText): Use a RefPtr for the parent here,
since otherwise there is no guarantee it survives. Also use nullptr and
update to new calling convention for mergeWithNextTextNode.
(WebCore::HTMLElement::insertAdjacent): Use nullptr.
(WebCore::HTMLElement::insertAdjacentElement): Use nullptr.
(WebCore::contextElementForInsertion): Use nullptr.
(WebCore::HTMLElement::contentEditable): Use ASCIILiteral.
(WebCore::HTMLElement::setContentEditable): Use AtomicString::ConstructFromLiteral.
(WebCore::HTMLElement::draggable): Use fastGetAttribute.
(WebCore::HTMLElement::setDraggable): Use AtomicString::ConstructFromLiteral.
(WebCore::HTMLElement::setSpellcheck): Use AtomicString::ConstructFromLiteral.
(WebCore::HTMLElement::click): Use nullptr.
(WebCore::HTMLElement::accessKeyAction): Use nullptr.
(WebCore::HTMLElement::title): Use fastGetAttribute.
(WebCore::HTMLElement::translateAttributeMode): Use fastGetAttribute, isNull,
and isEmpty.
(WebCore::HTMLElement::translate): Use parentElement and toHTMLElement.
Use early-continue style instead of nesting the whole loop body inside an if.
(WebCore::setHasDirAutoFlagRecursively): Use nullptr.
(WebCore::HTMLElement::hasDirectionAuto): Use isNull.
(WebCore::HTMLElement::directionality): Use nullptr.
(WebCore::HTMLElement::adjustDirectionalityIfNeededAfterChildrenChanged): Use nullptr.
(WebCore::HTMLElement::addHTMLLengthToStyle): Use longer variable names.

* html/HTMLTableCellElement.cpp:
(WebCore::HTMLTableCellElement::abbr): Use fastGetAttribute.
(WebCore::HTMLTableCellElement::axis): Ditto.
(WebCore::HTMLTableCellElement::headers): Ditto.
(WebCore::HTMLTableCellElement::scope): Ditto.
* html/HTMLTableColElement.cpp:
(WebCore::HTMLTableColElement::width): Ditto.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157300 268f45cc-cd09-0410-ab3c-d52691b4dbfc