https://bugs.webkit.org/show_bug.cgi?id=89351

Reviewed by Eric Seidel.

Source/WebCore:

Generate mutation records inside the parser. This is done by using a
ChildListMutationScope in the ContainerNode::parser* methods and then
adding delivery before each <script> element would be processed by
the parser.

Test: fast/dom/MutationObserver/parser-mutations.html

* dom/ContainerNode.cpp:
(WebCore::ContainerNode::takeAllChildrenFrom):
(WebCore::ContainerNode::parserInsertBefore):
(WebCore::ContainerNode::parserRemoveChild):
(WebCore::ContainerNode::parserAppendChild):
* html/parser/HTMLScriptRunner.cpp:
(WebCore::HTMLScriptRunner::executeParsingBlockingScript):
(WebCore::HTMLScriptRunner::executePendingScriptAndDispatchEvent):
(WebCore::HTMLScriptRunner::execute):
(WebCore::HTMLScriptRunner::executeScriptsWaitingForLoad):
(WebCore::HTMLScriptRunner::executeScriptsWaitingForStylesheets):
(WebCore::HTMLScriptRunner::executeScriptsWaitingForParsing):
(WebCore::HTMLScriptRunner::runScript):

LayoutTests:

Add new test mutation records in the parser and fix shadow-dom.html
test since it used setTimeout and sometimes could observe parser
mutations.

* fast/dom/MutationObserver/parser-mutations-expected.txt: Added.
* fast/dom/MutationObserver/parser-mutations.html: Added.
* fast/dom/MutationObserver/shadow-dom-expected.txt:
* fast/dom/MutationObserver/shadow-dom.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142204 268f45cc-cd09-0410-ab3c-d52691b4dbfc