DevTools: [SSP] make rule link to point to the style open bracket

third_party/WebKit/Source/devtools/front_end/elements/StylesSidebarPane.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 630 matching lines @@
    * @param {!SDK.CSSMatchedStyles} matchedStyles
    * @param {!Components.Linkifier} linkifier
    * @param {?SDK.CSSRule} rule
    * @return {!Node}
    */
   static createRuleOriginNode(matchedStyles, linkifier, rule) {
     if (!rule)
       return createTextNode('');
 
     var ruleLocation;
-    if (rule instanceof SDK.CSSStyleRule) {
-      var matchingSelectors = matchedStyles.matchingSelectors(rule);
-      var firstMatchingIndex = matchingSelectors.length ? matchingSelectors[0] : 0;
-      ruleLocation = rule.selectors[firstMatchingIndex].range;
-    } else if (rule instanceof SDK.CSSKeyframeRule) {
+    if (rule instanceof SDK.CSSStyleRule)
+      ruleLocation = rule.style.range;
+    else if (rule instanceof SDK.CSSKeyframeRule)
       ruleLocation = rule.key().range;
-    }
 
     var header = rule.styleSheetId ? matchedStyles.cssModel().styleSheetHeaderForId(rule.styleSheetId) : null;
     if (ruleLocation && rule.styleSheetId && header && !header.isAnonymousInlineStyleSheet()) {
       return Elements.StylePropertiesSection._linkifyRuleLocation(
           matchedStyles.cssModel(), linkifier, rule.styleSheetId, ruleLocation);
     }
 
     if (rule.isUserAgent())
       return createTextNode(Common.UIString('user agent stylesheet'));
     if (rule.isInjected())
@@ skipping 2381 matching lines @@
   }
 
   /**
    * @override
    * @return {!UI.ToolbarItem}
    */
   item() {
     return this._button;
   }
 };