DevTools: keep links on the edited styles so that they are not collected betw...

webkit/glue/devtools/js/inject.js

 // Copyright (c) 2009 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.
 
 /**
  * @fileoverview Javascript that is being injected into the inspectable page
  * while debugging.
  */
 goog.require('goog.json');
 goog.provide('devtools.Injected');
 
 
 /**
  * Main injected object.
  * @constructor.
  */
 devtools.Injected = function() {
   /**
    * Unique style id generator.
    * @type {number}
    * @private
    */
   this.lastStyleId_ = 1;
+
+  /**
+   * This array is not unused as it may seem. It stores references to the
+   * styles so that they could be found for future editing.
+   * @type {Array<CSSStyleDeclaration>}
+   * @private
+   */
+  this.styles_ = [];
 };
 
 
 /**
  * Returns array of properties for a given node on a given path.
  * @param {Node} node Node to get property value for.
  * @param {Array.<string>} path Path to the nested object.
  * @param {number} protoDepth Depth of the actual proto to inspect.
  * @return {Array.<Object>} Array where each property is represented
  *     by the tree entries [{string} type, {string} name, {Object} value].
@@ skipping 149 matching lines @@
  * @param {CSSStyleDeclaration} style Style to serialize.
  * @return {Array<Object>} Serializable object.
  * @private
  */
 devtools.Injected.prototype.serializeStyle_ = function(style) {
   if (!style) {
     return [];
   }
   if (!style.__id) {
     style.__id = this.lastStyleId_++;
+    this.styles_.push(style);
   }
   var result = [
     style.__id,
     style.__disabledProperties,
     style.__disabledPropertyValues,
     style.__disabledPropertyPriorities
   ];
   for (var i = 0; i < style.length; ++i) {
     var name = style[i];
     result.push([
@@ skipping 73 matching lines @@
     var individualProperty = style[i];
     if (individualProperty in foundProperties ||
         style.getPropertyShorthand(individualProperty) != shorthandProperty) {
       continue;
     }
     foundProperties[individualProperty] = true;
     properties.push(individualProperty);
   }
   return properties;
 };