Decouple killbit testing from external extension providers

chrome/browser/extensions/external_extension_provider.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_H_
 #pragma once
 
-#include <set>
-#include <string>
-
 #include "chrome/common/extensions/extension.h"
 
 class FilePath;
 class Version;
 
 // This class is an abstract class for implementing external extensions
 // providers.
 class ExternalExtensionProvider {
  public:
   // ExternalExtensionProvider uses this interface to communicate back to the
@@ skipping 15 matching lines @@
 
    protected:
      virtual ~Visitor() {}
   };
 
   virtual ~ExternalExtensionProvider() {}
 
   // Enumerate registered extension, calling OnExternalExtensionFound on
   // the |visitor| object for each registered extension found. |ids_to_ignore|
   // contains a list of extension ids that should not result in a call back.
-  virtual void VisitRegisteredExtension(
-      Visitor* visitor, const std::set<std::string>& ids_to_ignore) const = 0;
+  virtual void VisitRegisteredExtension(Visitor* visitor) const = 0;
 
   // Test if this provider has an extension with id |id| registered.
   virtual bool HasExtension(const std::string& id) const = 0;
 
   // Gets details of an extension by its id.  Output params will be set only
   // if they are not NULL.  If an output parameter is not specified by the
   // provider type, it will not be changed.
   // This function is no longer used outside unit tests.
   virtual bool GetExtensionDetails(const std::string& id,
                                    Extension::Location* location,
                                    scoped_ptr<Version>* version) const = 0;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_H_