[ESLint] Fix violations when enabling curly rule in eslint.

tracing/tracing/extras/importer/linux_perf/sched_parser.html

Index: tracing/tracing/extras/importer/linux_perf/sched_parser.html
diff --git a/tracing/tracing/extras/importer/linux_perf/sched_parser.html b/tracing/tracing/extras/importer/linux_perf/sched_parser.html
index 14ca1fcbc0bc8c49159f5fbb89d01f035bb397ef..6f7076a80b6a70a5e6b825d1f018d07b24469004 100644
--- a/tracing/tracing/extras/importer/linux_perf/sched_parser.html
+++ b/tracing/tracing/extras/importer/linux_perf/sched_parser.html
@@ -59,8 +59,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
      */
     schedSwitchEvent: function(eventName, cpuNumber, pid, ts, eventBase) {
       var event = schedSwitchRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var prevState = event[4];
       var nextComm = event[5];
@@ -78,10 +77,11 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
 
       var nextThread = this.importer.threadsByLinuxPid[nextPid];
       var nextName;
-      if (nextThread)
+      if (nextThread) {
         nextName = nextThread.userFriendlyName;
-      else
+      } else {
         nextName = nextComm;
+      }
 
       var cpu = this.importer.getOrCreateCpu(cpuNumber);
       cpu.switchActiveThread(
@@ -100,8 +100,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
 
     schedWakeupEvent: function(eventName, cpuNumber, pid, ts, eventBase) {
       var event = schedWakeupRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var fromPid = pid;
       var comm = event[1];
@@ -113,8 +112,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
 
     schedCpuHotplugEvent: function(eventName, cpuNumber, pid, ts, eventBase) {
       var event = /cpu (\d+) (.+) error=(\d+)/.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var cpuNumber = event[1];
       var state = event[2];
@@ -127,16 +125,16 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
                 powerCounter.name + '.' + 'State')));
       }
       powerCounter.series.forEach(function(series) {
-        if (series.name === 'State')
+        if (series.name === 'State') {
           series.addCounterSample(ts, state.localeCompare('offline') ? 0 : 1);
+        }
       });
       return true;
     },
 
     schedBlockedEvent: function(eventName, cpuNumber, pid, ts, eventBase) {
       var event = schedBlockedRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var pid = parseInt(event[1]);
       var iowait = parseInt(event[2]);