Implement frames() timing function

third_party/WebKit/Source/devtools/front_end/sdk/CSSMetadata.js

 /*
  * Copyright (C) 2010 Nikita Vasilyev. All rights reserved.
  * Copyright (C) 2010 Joseph Pecoraro. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
@@ skipping 637 matching lines @@
   'align-items': {values: ['flex-start', 'flex-end', 'center', 'baseline', 'stretch']},
   'align-self': {values: ['auto', 'flex-start', 'flex-end', 'center', 'baseline', 'stretch']},
   'flex-direction': {values: ['row', 'row-reverse', 'column', 'column-reverse']},
   'justify-content': {values: ['flex-start', 'flex-end', 'center', 'space-between', 'space-around']},
   'flex-wrap': {values: ['nowrap', 'wrap', 'wrap-reverse']},
   'perspective': {values: ['none']},
   'perspective-origin': {values: ['left', 'center', 'right', 'top', 'bottom']},
   'transform-origin': {values: ['left', 'center', 'right', 'top', 'bottom']},
   'transform-style': {values: ['flat', 'preserve-3d']},
   'transition-timing-function': {
-    values:
-        ['ease', 'linear', 'ease-in', 'ease-out', 'ease-in-out', 'step-start', 'step-end', 'steps', 'cubic-bezier']
+    values: [
+      'ease', 'linear', 'ease-in', 'ease-out', 'ease-in-out', 'step-start', 'step-end', 'steps', 'frames',
+      'cubic-bezier'
+    ]
   },
   'animation-timing-function': {
-    values:
-        ['ease', 'linear', 'ease-in', 'ease-out', 'ease-in-out', 'step-start', 'step-end', 'steps', 'cubic-bezier']
+    values: [
+      'ease', 'linear', 'ease-in', 'ease-out', 'ease-in-out', 'step-start', 'step-end', 'steps', 'frames',
+      'cubic-bezier'
+    ]
   },
   'animation-direction': {values: ['normal', 'reverse', 'alternate', 'alternate-reverse']},
   'animation-play-state': {values: ['running', 'paused']},
   'animation-fill-mode': {values: ['none', 'forwards', 'backwards', 'both']},
   '-webkit-backface-visibility': {values: ['visible', 'hidden']},
   '-webkit-box-decoration-break': {values: ['slice', 'clone']},
   '-webkit-column-break-after':
       {values: ['auto', 'always', 'avoid', 'left', 'right', 'page', 'column', 'avoid-page', 'avoid-column']},
   '-webkit-column-break-before':
       {values: ['auto', 'always', 'avoid', 'left', 'right', 'page', 'column', 'avoid-page', 'avoid-column']},
@@ skipping 278 matching lines @@
   'widows': 115,
   'width': 268,
   'will-change': 74,
   'word-break': 166,
   'word-spacing': 157,
   'word-wrap': 197,
   'writing-mode': 41,
   'z-index': 239,
   'zoom': 200
 };