function sourceMapLoaded(sourceMap)
        {
            var url = /** @type {string} */ (sourceMapURL);
            var callbacks = this._pendingSourceMapLoadingCallbacks[url];
            delete this._pendingSourceMapLoadingCallbacks[url];
            if (!callbacks)
                return;
            if (sourceMap)
                this._sourceMapForSourceMapURL[url] = sourceMap;
            for (var i = 0; i < callbacks.length; ++i)
                callbacks[i](sourceMap);
        }
@param {?WebInspector.SourceMap} sourceMap
@this {WebInspector.CompilerScriptMapping}