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

tracing/tracing/extras/importer/linux_perf/regulator_parser.html

Index: tracing/tracing/extras/importer/linux_perf/regulator_parser.html
diff --git a/tracing/tracing/extras/importer/linux_perf/regulator_parser.html b/tracing/tracing/extras/importer/linux_perf/regulator_parser.html
index 8031e40ece419afac59808b0f2194408d7d5319c..53cf75adccc27369d1ae2e2b69571666a016abef 100644
--- a/tracing/tracing/extras/importer/linux_perf/regulator_parser.html
+++ b/tracing/tracing/extras/importer/linux_perf/regulator_parser.html
@@ -74,8 +74,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
      */
     regulatorEnableEvent: function(eventName, cpuNum, pid, ts, eventBase) {
       var event = regulatorEnableRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var name = event[1];
 
@@ -96,8 +95,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
 
     regulatorDisableEvent: function(eventName, cpuNum, pid, ts, eventBase) {
       var event = regulatorDisableRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var name = event[1];
 
@@ -119,8 +117,7 @@ tr.exportTo('tr.e.importer.linux_perf', function() {
     regulatorSetVoltageCompleteEvent: function(eventName, cpuNum, pid, ts,
         eventBase) {
       var event = regulatorSetVoltageCompleteRE.exec(eventBase.details);
-      if (!event)
-        return false;
+      if (!event) return false;
 
       var name = event[1];
       var voltage = parseInt(event[2]);