Move viewless WebKit methods that Safari needs from WebViewInternal to WebViewPrivate.

        Reviewed by Tim Hatcher

        * WebView/WebView.mm:
        (WebKitInitializeApplicationCachePathIfNecessary):
        (-[WebView _registerDraggedTypes]):
        (-[WebView _usesDocumentViews]):
        (-[WebView _commonInitializationWithFrameName:groupName:usesDocumentViews:]):
        (-[WebView _initWithFrame:frameName:groupName:usesDocumentViews:]):
        (-[WebView isFlipped]):
        (-[WebView viewWillDraw]):
        * WebView/WebViewInternal.h:
        * WebView/WebViewPrivate.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@37387 268f45cc-cd09-0410-ab3c-d52691b4dbfc