WIP: run clang-format-js on lots of things

chrome/browser/resources/print_preview/print_preview_animations.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Counter used to give webkit animations unique names.
 var animationCounter = 0;
 
 var animationEventTracker_ = new EventTracker();
 
 function addAnimation(code) {
   var name = 'anim' + animationCounter;
   animationCounter++;
-  var rules = document.createTextNode(
-      '@-webkit-keyframes ' + name + ' {' + code + '}');
+  var rules =
+      document.createTextNode('@-webkit-keyframes ' + name + ' {' + code + '}');
   var el = document.createElement('style');
   el.type = 'text/css';
   el.appendChild(rules);
   el.setAttribute('id', name);
   document.body.appendChild(el);
 
   return name;
 }
 
 /**
@@ skipping 157 matching lines @@
     while (el.childNodes.length > 0)
       div.appendChild(el.firstChild);
     el.appendChild(div);
   }
 
   div.className = '';
   div.classList.add('collapsible');
   for (var i = 0; i < classes.length; i++)
     div.classList.add(classes[i]);
 }