Remove unused code in runner.js

third_party/WebKit/PerformanceTests/resources/runner.js

 // There are tests for computeStatistics() located in LayoutTests/fast/harness/perftests
 
 if (window.testRunner) {
     testRunner.waitUntilDone();
     testRunner.dumpAsText();
 }
 
 (function () {
     var logLines = null;
     var completedIterations = -1;
@@ skipping 154 matching lines @@
         iterationCount = test.iterationCount || (window.testRunner ? 5 : 20);
         if (test.warmUpCount && test.warmUpCount > 0)
             completedIterations = -test.warmUpCount;
         logLines = PerfTestRunner.bufferedLog || window.testRunner ? [] : null;
         PerfTestRunner.log("Running " + iterationCount + " times");
         if (test.doNotIgnoreInitialRun)
             completedIterations++;
 
         if (runner && test.tracingCategories && window.testRunner &&
             window.testRunner.supportTracing) {
-            window.testRunner.traceEventsToMeasure = test.traceEventsToMeasure;

[nednguyen, 2017/05/03 16:29:18]

This was mistakenly left out when I switch to using
testRunner.stopTracingAndMeasure

             window.testRunner.startTracing(test.tracingCategories, function() {
                 scheduleNextRun(scheduler, runner);
             });
         } else if (runner) {
             if (test.tracingCategories && !(window.testRuner &&
                   window.testRunner.supportTracing)) {
                 PerfTestRunner.log("Tracing based metrics are specified but " +
                     "tracing is not supported on this platform. To get those " +
                     "metrics from this test, you can run the test using " +
                     "tools/perf/run_benchmarks script.");
@@ skipping 241 matching lines @@
 
             iframe.contentDocument.close();
             document.body.removeChild(iframe);
         };
 
         PerfTestRunner.measureTime(test);
     }
 
     window.PerfTestRunner = PerfTestRunner;
 })();