DevTools: migrate StylesSidebarPane to shadow

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

 /*
  * Copyright (C) 2007 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 /**
  * @unrestricted
  */
 Elements.MetricsSidebarPane = class extends Elements.ElementsSidebarPane {
   constructor() {
-    super(true);
+    super();
     this.registerRequiredCSS('elements/metricsSidebarPane.css');
 
     /** @type {?SDK.CSSStyleDeclaration} */
     this._inlineStyle = null;
   }
 
   /**
    * @override
    * @protected
    * @return {!Promise.<?>}
@@ skipping 401 matching lines @@
       if (commitEditor)
         this.update();
     }
   }
 
   _editingCommitted(element, userInput, previousContent, context) {
     this.editingEnded(element, context);
     this._applyUserInput(element, userInput, previousContent, context, true);
   }
 };