Import Chromium's dom_perf test

Import Chromium's dom_perf test
https://bugs.webkit.org/show_bug.cgi?id=77175

Reviewed by Adam Barth.

Import dom_perf.

Note resources/dom/suites.js isn't used by any html file yet but it will be used by Chromium port
once its perf bots start pulling test files from WebKit repository instead of Google's internal repository.

* DOM: Added.
* DOM/Accessors.html: Added.
* DOM/CloneNodes.html: Added.
* DOM/CreateNodes.html: Added.
* DOM/DOMDivWalk.html: Added.
* DOM/DOMTable.html: Added.
* DOM/DOMWalk.html: Added.
* DOM/Events.html: Added.
* DOM/GetElement.html: Added.
* DOM/GridSort.html: Added.
* DOM/Template.html: Added.
* DOM/resources: Added.
* DOM/resources/dom-perf.js: Added.
* DOM/resources/dom-perf: Added.
* DOM/resources/dom-perf/accessors.js: Added.
* DOM/resources/dom-perf/clonenodes.js: Added.
* DOM/resources/dom-perf/createnodes.js: Added.
* DOM/resources/dom-perf/domdivwalk.js: Added.
* DOM/resources/dom-perf/domtable.js: Added.
* DOM/resources/dom-perf/domwalk.js: Added.
* DOM/resources/dom-perf/events.js: Added.
* DOM/resources/dom-perf/getelement.js: Added.
* DOM/resources/dom-perf/gridsort.js: Added.
* DOM/resources/dom-perf/suites.js: Added.
* DOM/resources/dom-perf/template.js: Added.
* resources/runner.js:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106147 268f45cc-cd09-0410-ab3c-d52691b4dbfc