Reviewed by David Hyatt.

        Make the cascade level of "user" styles configurable
        https://bugs.webkit.org/show_bug.cgi?id=43457

        * css/CSSStyleSelector.cpp:
        (WebCore::CSSStyleSelector::CSSStyleSelector): Handle the case where user styles might have author level. Minor refactor.
        * dom/Document.cpp:
        (WebCore::Document::pageGroupUserSheets): Set isUserStyle on created stylesheet objects appropriately.
        * page/PageGroup.cpp:
        (WebCore::PageGroup::addUserStyleSheetToWorld): Add new optional "level" argument.
        * page/PageGroup.h: Ditto.
        * page/UserStyleSheet.h: Add level property.
        (WebCore::UserStyleSheet::):
        (WebCore::UserStyleSheet::UserStyleSheet):
        (WebCore::UserStyleSheet::setLevel):
        (WebCore::UserStyleSheet::level):
2010-08-10  Aaron Boodman  <aa@chromium.org>

        Reviewed by David Hyatt.

        Make the cascade level of "user" styles configurable
        https://bugs.webkit.org/show_bug.cgi?id=43457

        * src/WebViewImpl.cpp:
        (WebKit::WebView::addUserStyleSheet): Send "author" for the css level of user styles.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@65183 268f45cc-cd09-0410-ab3c-d52691b4dbfc