Reviewed by Darin Adler.

        Pass WebPageCreationParameters to DrawingArea::create
        https://bugs.webkit.org/show_bug.cgi?id=52726

        * WebProcess/WebPage/DrawingArea.cpp:
        (WebKit::DrawingArea::create):
        * WebProcess/WebPage/DrawingArea.h:
        * WebProcess/WebPage/DrawingAreaImpl.cpp:
        (WebKit::DrawingAreaImpl::create):
        (WebKit::DrawingAreaImpl::DrawingAreaImpl):
        * WebProcess/WebPage/DrawingAreaImpl.h:
        * WebProcess/WebPage/WebPage.cpp:
        (WebKit::WebPage::WebPage):
        (WebKit::WebPage::changeAcceleratedCompositingMode):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76135 268f45cc-cd09-0410-ab3c-d52691b4dbfc