DevTools: introduce beautiful checkmarks in navigator and editor tabs

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

 // Copyright 2016 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.
 
 /**
  * @constructor
  * @extends {HTMLSpanElement}
  */
 WebInspector.Icon = class extends HTMLSpanElement {
   constructor() {
@@ skipping 92 matching lines @@
   'smallicon-device': {x: -100, y: 0, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-red-ball': {x: -120, y: 0, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-green-ball': {x: -140, y: 0, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-orange-ball': {x: -160, y: 0, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-thick-right-arrow': {x: -180, y: 0, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-user-command': {x: 0, y: -20, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-text-prompt': {x: -20, y: -20, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-command-result': {x: -40, y: -20, width: 10, height: 10, spritesheet: 'smallicons'},
   'smallicon-shadow-mask': {x: -60, y: -20, width: 10, height: 10, spritesheet: 'smallicons', isMask: true},
   'smallicon-bezier-mask': {x: -80, y: -20, width: 10, height: 10, spritesheet: 'smallicons', isMask: true},
+  'smallicon-checkmark-mask': {x: -100, y: -20, width: 10, height: 10, spritesheet: 'smallicons', isMask: true},
+  'smallicon-checkmark': {x: -120, y: -20, width: 10, height: 10, spritesheet: 'smallicons'},
 };