[DevTools] Migrate Popover to GlassPane

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}
  */
 UI.Icon = class extends HTMLSpanElement {
   constructor() {
@@ skipping 206 matching lines @@
   'largeicon-navigator-snippet': {x: -224, y: -96, width: 32, height: 24, spritesheet: 'largeicons', isMask: true},
   'largeicon-edit': {x: -160, y: -0, width: 28, height: 24, spritesheet: 'largeicons', isMask: true},
   'largeicon-chevron': {x: -68, y: -143, width: 24, height: 26, spritesheet: 'largeicons', isMask: true},
 
   'mediumicon-manifest': {x: 0, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
   'mediumicon-service-worker': {x: -20, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
   'mediumicon-clear-storage': {x: -40, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
   'mediumicon-database': {x: -60, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
   'mediumicon-table': {x: -80, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
   'mediumicon-cookie': {x: -120, y: -0, width: 16, height: 16, spritesheet: 'resourceicons', isMask: true},
+
+  'mediumicon-arrow-top': {x: 0, y: 0, width: 19, height: 19, spritesheet: 'arrowicons'},
+  'mediumicon-arrow-bottom': {x: 0, y: -19, width: 19, height: 19, spritesheet: 'arrowicons'},
+  'mediumicon-arrow-left': {x: 0, y: -38, width: 19, height: 19, spritesheet: 'arrowicons'},
+  'mediumicon-arrow-right': {x: 0, y: -57, width: 19, height: 19, spritesheet: 'arrowicons'},
 };