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

tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html

Index: tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html
diff --git a/tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html b/tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html
index 08e41c64d37343254a4f6d95d088c80bca8eecc3..e8666c1c16ae7ebb2af2a7e305d4f5d0fd3b357d 100644
--- a/tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html
+++ b/tracing/tracing/ui/analysis/multi_thread_slice_sub_view.html
@@ -82,11 +82,11 @@ Polymer({
   },
 
   get requiresTallView() {
-    if (this.$.content.children.length === 0)
-      return false;
+    if (this.$.content.children.length === 0) return false;
     var childTagName = this.$.content.children[0].tagName;
-    if (childTagName === 'TR-UI-A-MULTI-EVENT-SUB-VIEW')
+    if (childTagName === 'TR-UI-A-MULTI-EVENT-SUB-VIEW') {
       return false;
+    }
 
     // Using raster task view.
     return true;