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

tracing/tracing/ui/tracks/memory_dump_track_test_utils.html

Index: tracing/tracing/ui/tracks/memory_dump_track_test_utils.html
diff --git a/tracing/tracing/ui/tracks/memory_dump_track_test_utils.html b/tracing/tracing/ui/tracks/memory_dump_track_test_utils.html
index 90100d9a03ca7b4367d46d74828be06a44106f00..f1524ecea20053b05d6a14f89a334f29d6eb7610 100644
--- a/tracing/tracing/ui/tracks/memory_dump_track_test_utils.html
+++ b/tracing/tracing/ui/tracks/memory_dump_track_test_utils.html
@@ -78,10 +78,12 @@ tr.exportTo('tr.ui.tracks', function() {
   function addProcessMemoryDumpWithFields(globalMemoryDump, process, start,
       opt_pssValues, opt_dumpData) {
     var pmd = addProcessMemoryDump(globalMemoryDump, process, {ts: start});
-    if (opt_pssValues !== undefined)
+    if (opt_pssValues !== undefined) {
       pmd.vmRegions = createVMRegions(opt_pssValues);
-    if (opt_dumpData !== undefined)
+    }
+    if (opt_dumpData !== undefined) {
       pmd.memoryAllocatorDumps = createAllocatorDumps(pmd, opt_dumpData);
+    }
   }
 
   function createModelWithDumps(withVMRegions, withAllocatorDumps) {