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

tracing/tracing/metrics/v8/utils.html

Index: tracing/tracing/metrics/v8/utils.html
diff --git a/tracing/tracing/metrics/v8/utils.html b/tracing/tracing/metrics/v8/utils.html
index 79c3af24722c62e9f7fb653982cbe07a79a38eef..f075425a12bdb605b786cce83eb96389739f77ca 100644
--- a/tracing/tracing/metrics/v8/utils.html
+++ b/tracing/tracing/metrics/v8/utils.html
@@ -183,8 +183,8 @@ tr.exportTo('tr.metrics.v8.utils', function() {
    * intervals merged into a single interval.
    */
   function unionOfIntervals(intervals) {
-    if (intervals.length === 0)
-      return [];
+    if (intervals.length === 0) return [];
+
     return tr.b.mergeRanges(
         intervals.map(x => { return { min: x.start, max: x.end }; }), 1e-6,
         function(ranges) {
@@ -209,8 +209,9 @@ tr.exportTo('tr.metrics.v8.utils', function() {
     var startOfFirstDumpWithV8 =
         model.globalMemoryDumps.filter(hasV8Stats).reduce(
             (start, dump) => Math.min(start, dump.start), Infinity);
-    if (startOfFirstDumpWithV8 === Infinity)
+    if (startOfFirstDumpWithV8 === Infinity) {
       return new tr.b.Range(); // Empty range.
+    }
     return tr.b.Range.fromExplicitRange(startOfFirstDumpWithV8, Infinity);
   }