function trimAndNormalizeFileSystemPath(fullPath)
            {
                var trimmedPath = fullPath.substr(this._fileSystem.path().length + 1);
                if (WebInspector.isWin())
                    trimmedPath = trimmedPath.replace(/\\/g, "/");
                return trimmedPath;
            }
@param {string} fullPath
@this {WebInspector.FileSystemWorkspaceBinding.FileSystem}