Reviewed by Darin.

    Reviewed by Darin.

        Fix http://bugzilla.opendarwin.org/show_bug.cgi?id=10009
        REGRESSION: Schubert-IT PDF Plug-in not working for full page (works in frames)

        No test case possible.

WebCore:
        * page/Frame.cpp:
        (WebCore::Frame::begin): Give PDF plugins a chance to handle frame content, before ImageDocument
        claims it.

WebKit:
        * WebView/WebView.m:
        (+[WebView _viewClass:andRepresentationClass:forMIMEType:]): If we've got a type supported by WebPDFView,
        make sure to initialize the plugin database, in case a plugin wants to handle it.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15598 268f45cc-cd09-0410-ab3c-d52691b4dbfc