[DevTools] Migrate Accessibility, Log, Worker to new style

third_party/WebKit/Source/modules/accessibility/InspectorAccessibilityAgent.h

 // Copyright 2015 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.
 
 #ifndef InspectorAccessibilityAgent_h
 #define InspectorAccessibilityAgent_h
 
 #include "core/inspector/InspectorBaseAgent.h"
 #include "core/inspector/protocol/Accessibility.h"
 #include "modules/ModulesExport.h"
 
 namespace blink {
 
 class AXObject;
 class InspectorDOMAgent;
 class Page;
 
 class MODULES_EXPORT InspectorAccessibilityAgent
     : public InspectorBaseAgent<protocol::Accessibility::Metainfo> {
   WTF_MAKE_NONCOPYABLE(InspectorAccessibilityAgent);
 
  public:
   InspectorAccessibilityAgent(Page*, InspectorDOMAgent*);
 
   // Base agent methods.
   DECLARE_VIRTUAL_TRACE();
 
   // Protocol methods.
-  void getAXNodeChain(
-      ErrorString*,
+  Response getAXNodeChain(
       int domNodeId,
       bool fetchAncestors,
       std::unique_ptr<protocol::Array<protocol::Accessibility::AXNode>>*)
       override;
 
  private:
   Member<Page> m_page;
   Member<InspectorDOMAgent> m_domAgent;
 
   std::unique_ptr<protocol::Accessibility::AXNode> buildObjectForIgnoredNode(
       Node* domNode,
       AXObject*) const;
   std::unique_ptr<protocol::Accessibility::AXNode> buildProtocolAXObject(
       AXObject&) const;
   void fillCoreProperties(AXObject&, protocol::Accessibility::AXNode&) const;
 };
 
 }  // namespace blink
 
 #endif  // InspectorAccessibilityAgent_h