Add autocomplete values for CSS contain

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 618 matching lines @@
         "none", "objects", "spaces", "ink", "edges", "box-decoration"
     ] },
     "mix-blend-mode": { values: [
         "normal", "multiply", "screen", "overlay", "darken", "lighten", "color-dodge", "color-burn", "hard-light", "soft-light",
         "difference", "exclusion", "hue", "saturation", "color", "luminosity", "unset"
     ] },
     "background-blend-mode": { values: [
         "normal", "multiply", "screen", "overlay", "darken", "lighten", "color-dodge", "color-burn", "hard-light", "soft-light",
         "difference", "exclusion", "hue", "saturation", "color", "luminosity", "unset"
     ] },
+    "contain": { values: [
+        "none", "strict", "content", "size", "layout", "style", "paint"
+    ] }
 }
 
 /**
  * @param {string} propertyName
  * @return {!WebInspector.CSSMetadata}
  */
 WebInspector.CSSMetadata.keywordsForProperty = function(propertyName)
 {
     var acceptedKeywords = ["inherit", "initial"];
     var descriptor = WebInspector.CSSMetadata.descriptor(propertyName);
@@ skipping 435 matching lines @@
      * @param {string} longhand
      * @return {?Array.<string>}
      */
     shorthands: function(longhand)
     {
         return this._shorthands[longhand];
     }
 }
 
 WebInspector.CSSMetadata.initializeWithSupportedProperties([]);