DevTools: Add JSDoc for static methods, fix JSDoc types and induced errors

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 52 matching lines @@
         }
     }
     this._values.sort();
 }
 
 /**
  * @type {!WebInspector.CSSMetadata}
  */
 WebInspector.CSSMetadata.cssPropertiesMetainfo = new WebInspector.CSSMetadata([]);
 
+/**
+ * @param {string} propertyName
+ * @return {boolean}
+ */
 WebInspector.CSSMetadata.isColorAwareProperty = function(propertyName)
 {
     return WebInspector.CSSMetadata._colorAwareProperties[propertyName] === true;
 }
 
+/**
+ * @return {!Object.<string, boolean>}
+ */
 WebInspector.CSSMetadata.colors = function()
 {
     if (!WebInspector.CSSMetadata._colorsKeySet)
         WebInspector.CSSMetadata._colorsKeySet = WebInspector.CSSMetadata._colors.keySet();
     return WebInspector.CSSMetadata._colorsKeySet;
 }
 
 // Taken from http://www.w3.org/TR/CSS21/propidx.html.
 WebInspector.CSSMetadata.InheritedProperties = [
     "azimuth", "border-collapse", "border-spacing", "caption-side", "color", "cursor", "direction", "elevation",
@@ skipping 634 matching lines @@
     if (!entry && unprefixedName !== propertyName)
         entry = WebInspector.CSSMetadata._propertyDataMap[unprefixedName];
     return entry || null;
 }
 
 WebInspector.CSSMetadata.initializeWithSupportedProperties = function(properties)
 {
     WebInspector.CSSMetadata.cssPropertiesMetainfo = new WebInspector.CSSMetadata(properties);
 }
 
+/**
+ * @return {!Object.<string, boolean>}
+ */
 WebInspector.CSSMetadata.cssPropertiesMetainfoKeySet = function()
 {
     if (!WebInspector.CSSMetadata._cssPropertiesMetainfoKeySet)
         WebInspector.CSSMetadata._cssPropertiesMetainfoKeySet = WebInspector.CSSMetadata.cssPropertiesMetainfo.keySet();
     return WebInspector.CSSMetadata._cssPropertiesMetainfoKeySet;
 }
 
 // Weight of CSS properties based on their usage on a few popular websites: https://gist.github.com/3751436
 WebInspector.CSSMetadata.Weight = {
     "-webkit-animation": 1,
@@ skipping 252 matching lines @@
      * @param {string} longhand
      * @return {?Array.<string>}
      */
     shorthands: function(longhand)
     {
         return this._shorthands[longhand];
     }
 }
 
 WebInspector.CSSMetadata.initializeWithSupportedProperties([]);