Change all == to === and != to !== in trace viewer.

tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html

Index: tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html
diff --git a/tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html b/tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html
index 055c7cd1340955c19d1935187d84df497491b162..2e096b65ec9058e751bf0d5b63f166b5be47634c 100644
--- a/tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html
+++ b/tracing/tracing/ui/extras/system_stats/system_stats_instance_track.html
@@ -66,7 +66,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
         this.objectInstance_ = [];
         return;
       }
-      if (objectInstances.length != 1)
+      if (objectInstances.length !== 1)
         throw new Error('Bad object instance count.');
       this.objectInstance_ = objectInstances[0];
       if (this.objectInstance_ !== null) {
@@ -83,7 +83,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
         var prevSnapshot;
         var prevStats;
 
-        if (i == 0) {
+        if (i === 0) {
           // Deltas will be zero.
           prevSnapshot = snapshots[0];
         } else {
@@ -92,7 +92,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
         prevStats = prevSnapshot.getStats();
         var timeIntervalSeconds = (snapshot.ts - prevSnapshot.ts) / 1000;
         // Prevent divide by zero.
-        if (timeIntervalSeconds == 0)
+        if (timeIntervalSeconds === 0)
           timeIntervalSeconds = 1;
 
         this.computeRatesRecursive_(prevStats, stats,
@@ -108,28 +108,28 @@ tr.exportTo('tr.ui.e.system_stats', function() {
                                       stats[statName],
                                       timeIntervalSeconds);
         } else {
-          if (statName == 'sectors_read') {
+          if (statName === 'sectors_read') {
             stats['bytes_read_per_sec'] = (stats['sectors_read'] -
                                            prevStats['sectors_read']) *
                                           512 / timeIntervalSeconds;
           }
-          if (statName == 'sectors_written') {
+          if (statName === 'sectors_written') {
             stats['bytes_written_per_sec'] =
                 (stats['sectors_written'] -
                  prevStats['sectors_written']) *
                 512 / timeIntervalSeconds;
           }
-          if (statName == 'pgmajfault') {
+          if (statName === 'pgmajfault') {
             stats['pgmajfault_per_sec'] = (stats['pgmajfault'] -
                                            prevStats['pgmajfault']) /
                                           timeIntervalSeconds;
           }
-          if (statName == 'pswpin') {
+          if (statName === 'pswpin') {
             stats['bytes_swpin_per_sec'] = (stats['pswpin'] -
                                             prevStats['pswpin']) *
                                            1000 / timeIntervalSeconds;
           }
-          if (statName == 'pswpout') {
+          if (statName === 'pswpout') {
             stats['bytes_swpout_per_sec'] = (stats['pswpout'] -
                                              prevStats['pswpout']) *
                                             1000 / timeIntervalSeconds;
@@ -237,7 +237,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
 
         // Compute the edges for the column graph bar.
         var right;
-        if (i != objectSnapshots.length - 1) {
+        if (i !== objectSnapshots.length - 1) {
           right = objectSnapshots[i + 1].ts;
         } else {
           // If this is the last snaphot of multiple snapshots, use the width of
@@ -267,7 +267,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
                                     maxStats,
                                     currentY);
 
-        if (i == lowIndex)
+        if (i === lowIndex)
           this.drawStatNames_(leftView, height, currentY, '', maxStats);
       }
       ctx.lineWidth = 1;
@@ -332,7 +332,7 @@ tr.exportTo('tr.ui.e.system_stats', function() {
         } else {
           var fullname = statName;
 
-          if (prefix != '')
+          if (prefix !== '')
             fullname = prefix + ' :: ' + statName;
 
           ctx.fillText(fullname, leftView - 10, currentY - height / 4);