Reduce PassRefPtr uses in dom - 2

Reduce PassRefPtr uses in dom - 2
https://bugs.webkit.org/show_bug.cgi?id=151936

Reviewed by Darin Adler.

Change PassRefPtr with RefPtr<Foo>&&, WTF::move(), Foo*, and Foo&.

* dom/ScopedEventQueue.h:
* dom/ScriptedAnimationController.cpp:
(WebCore::ScriptedAnimationController::registerCallback):
* dom/ScriptedAnimationController.h:
* dom/StaticNodeList.h:
* dom/Traversal.cpp:
(WebCore::NodeIteratorBase::NodeIteratorBase):
* dom/Traversal.h:
* dom/TreeWalker.cpp:
(WebCore::TreeWalker::TreeWalker):
(WebCore::TreeWalker::setCurrentNode):
* dom/TreeWalker.h:
(WebCore::TreeWalker::create):
* dom/UserActionElementSet.h:
* dom/WebKitNamedFlow.cpp:
(WebCore::WebKitNamedFlow::WebKitNamedFlow):
(WebCore::WebKitNamedFlow::create):
(WebCore::WebKitNamedFlow::getRegionsByContent):
(WebCore::WebKitNamedFlow::getRegions):
(WebCore::WebKitNamedFlow::getContent):
* dom/WebKitNamedFlow.h:
* dom/WheelEvent.cpp:
(WebCore::WheelEvent::WheelEvent):
(WebCore::WheelEvent::initWheelEvent):
(WebCore::WheelEvent::initWebKitWheelEvent):
* dom/WheelEvent.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@194324 268f45cc-cd09-0410-ab3c-d52691b4dbfc