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

tracing/tracing/mre/job.html

Index: tracing/tracing/mre/job.html
diff --git a/tracing/tracing/mre/job.html b/tracing/tracing/mre/job.html
index 6a34d509cc186309d4d3d3e3f8b70721412b5585..b92dad0c75d108421e8dd511611dbb63facd39fc 100644
--- a/tracing/tracing/mre/job.html
+++ b/tracing/tracing/mre/job.html
@@ -34,7 +34,7 @@ tr.exportTo('tr.mre', function() {
 
   Job.fromDict = function(jobDict) {
     var mapFunctionHandle = null;
-    if (jobDict.map_function_handle != null) {
+    if (jobDict.map_function_handle !== null) {
           mapFunctionHandle = tr.mre.FunctionHandle.fromDict(
               jobDict.map_function_handle);
     }