Reviewed by Don.

    Reviewed by Don.

	- remove more SPI usage
	- fix <rdar://problem/3446192> CoreTranslation SPI is going away

        * History.subproj/WebHistoryItem.m:
        (+[WebHistoryItem _releasePageCache:]):
        * Misc.subproj/WebNSPasteboardExtras.m:
        (+[NSPasteboard initialize]):
        * WebCoreSupport.subproj/WebTextRenderer.h:
        * WebCoreSupport.subproj/WebTextRenderer.m:
        (-[WebTextRenderer _setupFont]):
        * WebView.subproj/WebPreferences.m:
        (+[WebPreferences _systemCFStringEncoding]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@9286 268f45cc-cd09-0410-ab3c-d52691b4dbfc