function didSetBreakpoint(error, breakpointId, actualLocation)
        {
            if (callback)
                callback(error ? null : breakpointId, [actualLocation]);
        }
@this {WebInspector.DebuggerModel}
@param {?Protocol.Error} error
@param {DebuggerAgent.BreakpointId} breakpointId
@param {DebuggerAgent.Location} actualLocation