rem: this.mDOMUtils = XPCU.createInstance("@mozilla.org/inspector/dom-utils;1", "inIDOMUtils"); 
add: this.mDOMUtils = XPCU.getService("@mozilla.org/inspector/dom-utils;1", "inIDOMUtils"); 
context: function StyleRuleView(aObject){  this.mDOMUtils = XPCU.createInstance("@mozilla.org/inspector/dom-utils;1", "inIDOMUtils");  if (doesQI(aObject, "nsIDOMCSSStyleSheet")) {    this.mSheetRules = aObject.cssRules;  } else {    this.mRules = this.mDOMUtils.getStyleRules(aObject);  }  if (this.mRules) {    for (var i = this.mRules.Count(); i >= 0; --i) {      var rule = this.mRules.GetElementAt(i);      try {        rule = XPCU.QI(rule, "nsIDOMCSSStyleRule");      } catch (ex) {        this.mRules.RemoveElement(rule);      }    }  }}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/e5aa92e533bbe775f9713467bc15a38cc506ed66/styleRules.js/clean/extensions/inspector/resources/content/viewers/styleRules/styleRules.js