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

tracing/tracing/value/histogram.html

Index: tracing/tracing/value/histogram.html
diff --git a/tracing/tracing/value/histogram.html b/tracing/tracing/value/histogram.html
index 84db948f63c1efdb8e4e6d8e2e79c985b73b591c..c4953e31b6609fb50fbe5b4713cc554c4f76dde9 100644
--- a/tracing/tracing/value/histogram.html
+++ b/tracing/tracing/value/histogram.html
@@ -350,10 +350,12 @@ tr.exportTo('tr.v', function() {
       for (let bin of this.allBins) {
         valuesToSkip -= bin.count;
         if (valuesToSkip >= 0) continue;
-        if (bin.range.min === -Number.MAX_VALUE)
+        if (bin.range.min === -Number.MAX_VALUE) {
           return bin.range.max;
-        if (bin.range.max === Number.MAX_VALUE)
+        }
+        if (bin.range.max === Number.MAX_VALUE) {
           return bin.range.min;
+        }
         return bin.range.center;
       }
       return this.allBins[this.allBins.length - 1].range.min;