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

tracing/tracing/base/raf.html

Index: tracing/tracing/base/raf.html
diff --git a/tracing/tracing/base/raf.html b/tracing/tracing/base/raf.html
index 7df834e496259621745dcafb8376947591f8ffe9..b5c2c20ec5f7d54414dfab3a31004fe072f2c5fb 100644
--- a/tracing/tracing/base/raf.html
+++ b/tracing/tracing/base/raf.html
@@ -30,8 +30,7 @@ tr.exportTo('tr.b', function() {
   var idleWorkScheduled = false;
 
   function scheduleRAF() {
-    if (rafScheduled)
-      return;
+    if (rafScheduled) return;
     rafScheduled = true;
     if (tr.isHeadless) {
       Promise.resolve().then(function() {
@@ -56,8 +55,7 @@ tr.exportTo('tr.b', function() {
   }
 
   function scheduleIdleWork() {
-    if (idleWorkScheduled)
-      return;
+    if (idleWorkScheduled) return;
     if (!nativeRequestIdleCallbackSupported()) {
       scheduleRAF();
       return;
@@ -70,16 +68,15 @@ tr.exportTo('tr.b', function() {
 
   function onAnimationFrameError(e, opt_stack) {
     console.log(e.stack);
-    if (tr.isHeadless)
-      throw e;
+    if (tr.isHeadless) throw e;
 
-    if (opt_stack)
-      console.log(opt_stack);
+    if (opt_stack) console.log(opt_stack);
 
-    if (e.message)
+    if (e.message) {
       console.error(e.message, e.stack);
-    else
+    } else {
       console.error(e);
+    }
   }
 
   function runTask(task, frameBeginTime) {
@@ -99,11 +96,13 @@ tr.exportTo('tr.b', function() {
     pendingRAFs = [];
     var hasRAFTasks = currentPreAFs.length || currentRAFDispatchList.length;
 
-    for (var i = 0; i < currentPreAFs.length; i++)
+    for (var i = 0; i < currentPreAFs.length; i++) {
       runTask(currentPreAFs[i], frameBeginTime);
+    }
 
-    while (currentRAFDispatchList.length > 0)
+    while (currentRAFDispatchList.length > 0) {
       runTask(currentRAFDispatchList.shift(), frameBeginTime);
+    }
     currentRAFDispatchList = undefined;
 
     if ((!hasRAFTasks && !nativeRequestIdleCallbackSupported()) ||
@@ -121,8 +120,7 @@ tr.exportTo('tr.b', function() {
       );
     }
 
-    if (pendingIdleCallbacks.length > 0)
-      scheduleIdleWork();
+    if (pendingIdleCallbacks.length > 0) scheduleIdleWork();
   }
 
   function processIdleWork(forceAllTasksToRun, deadline) {
@@ -138,13 +136,11 @@ tr.exportTo('tr.b', function() {
       }
     }
 
-    if (pendingIdleCallbacks.length > 0)
-      scheduleIdleWork();
+    if (pendingIdleCallbacks.length > 0) scheduleIdleWork();
   }
 
   function getStack_() {
-    if (!recordRAFStacks)
-      return '';
+    if (!recordRAFStacks) return '';
 
     var stackLines = tr.b.stackTrace();
     // Strip off getStack_.
@@ -193,14 +189,12 @@ tr.exportTo('tr.b', function() {
   }
 
   function forcePendingRAFTasksToRun(frameBeginTime) {
-    if (!rafScheduled)
-      return;
+    if (!rafScheduled) return;
     processRequests(false, frameBeginTime);
   }
 
   function forceAllPendingTasksToRunForTest() {
-    if (!rafScheduled && !idleWorkScheduled)
-      return;
+    if (!rafScheduled && !idleWorkScheduled) return;
     processRequests(true, 0);
   }