Short of a few small snippets that still need to be pushed to WebCore, this
        is a final prune of WebIconDatabase.  WebFileDatabase and WebLRUFileList are gone
        and the small remaining snippets of WebFileDatabase code that were still important
        are now in static functions in WebIconDatabase.m

        * Loader/WebIconLoader.m:
        (-[WebIconLoader didFinishLoading]): Removed the flag
        * Misc/WebFileDatabase.h: Removed.
        * Misc/WebFileDatabase.m: Removed.
        * Misc/WebIconDatabase.m:
        (+[WebIconDatabase sharedIconDatabase]):
        (-[WebIconDatabase init]):
        (-[WebIconDatabase iconForURL:withSize:cache:]):
        (-[WebIconDatabase iconURLForURL:]):
        (-[WebIconDatabase defaultIconWithSize:]):
        (-[WebIconDatabase retainIconForURL:]):
        (-[WebIconDatabase releaseIconForURL:]):
        (-[WebIconDatabase _isEnabled]):
        (-[WebIconDatabase _setIconData:forIconURL:]):
        (-[WebIconDatabase _setHaveNoIconForIconURL:]):
        (-[WebIconDatabase _setIconURL:forURL:]):
        (-[WebIconDatabase _hasEntryForIconURL:]):
        (-[WebIconDatabase _applicationWillTerminate:]):
        (-[WebIconDatabase _resetCachedWebPreferences:]):
        (uniqueFilePathForKey): Added from WebFileDatabase
        (objectFromPathForKey): Added from WebFileDatabase
        (iconDataFromPathForIconURL):
        (-[WebIconDatabase _convertToWebCoreFormat]): Make use of static functions and local variables
          instead of using WebFileDatabase and WebIconDatabase variables that are now obsolete
        * Misc/WebIconDatabasePrivate.h: Removed alot of obsoleted members
        * Misc/WebLRUFileList.h: Removed.
        * Misc/WebLRUFileList.m: Removed.
        * WebKit.xcodeproj/project.pbxproj: Deleted 4 files
        * WebKitPrefix.h: Removed ICONDEBUG



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16091 268f45cc-cd09-0410-ab3c-d52691b4dbfc