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

tracing/tracing/model/cpu.html

Index: tracing/tracing/model/cpu.html
diff --git a/tracing/tracing/model/cpu.html b/tracing/tracing/model/cpu.html
index 28d49e9d3c448cf418e99be169312b132b3ad90b..61f4d40d54aab9a7e17e50878029079f0c2d912b 100644
--- a/tracing/tracing/model/cpu.html
+++ b/tracing/tracing/model/cpu.html
@@ -134,7 +134,7 @@ tr.exportTo('tr.model', function() {
 
     createSubSlices: function() {
       this.samples_ = this.kernel.model.samples.filter(function(sample) {
-        return sample.cpu == this;
+        return sample.cpu === this;
       }, this);
     },
 
@@ -169,7 +169,7 @@ tr.exportTo('tr.model', function() {
      */
     closeActiveThread: function(endTimestamp, args) {
       // Don't generate a slice if the last active thread is the idle task.
-      if (this.lastActiveThread_ == undefined || this.lastActiveThread_ == 0)
+      if (this.lastActiveThread_ === undefined || this.lastActiveThread_ === 0)
         return;
 
       if (endTimestamp < this.lastActiveTimestamp_) {