DevTools: Show screenshots on the main flamechart

third_party/WebKit/Source/devtools/front_end/ui/UIUtils.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
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  */
 UI.loadImage = function(url) {
   return new Promise(fulfill => {
     var image = new Image();
     image.addEventListener('load', () => fulfill(image));
     image.addEventListener('error', () => fulfill(null));
     image.src = url;
   });
 };
 
+/**
+ * @param {?string} data
+ * @return {!Promise<?Image>}
+ */
+UI.loadImageFromData = function(data) {
+  return data ? UI.loadImage('data:image/jpg;base64,' + data) : Promise.resolve(null);
+};
+
 /** @type {!UI.ThemeSupport} */
 UI.themeSupport;
 
 /**
  * @param {function(!File)} callback
  * @return {!Node}
  */
 UI.createFileSelectorElement = function(callback) {
   var fileSelectorElement = createElement('input');
   fileSelectorElement.type = 'file';
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    */
   constructor(message, okCallback, cancelCallback) {
     super(true);
     this.registerRequiredCSS('ui/confirmDialog.css');
     this.contentElement.createChild('div', 'message').createChild('span').textContent = message;
     var buttonsBar = this.contentElement.createChild('div', 'button');
     buttonsBar.appendChild(UI.createTextButton(Common.UIString('Ok'), okCallback));
     buttonsBar.appendChild(UI.createTextButton(Common.UIString('Cancel'), cancelCallback));
   }
 };