Consolidate manifest handler registration.

chrome/browser/extensions/api/system_indicator/system_indicator_api.h

 // Copyright (c) 2012 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_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_
 
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
-#include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
 #include "chrome/browser/extensions/extension_function.h"
 
 class Profile;
 
 namespace extensions {
 
-class SystemIndicatorAPI : public ProfileKeyedAPI {
- public:
-  explicit SystemIndicatorAPI(Profile* profile);
-  virtual ~SystemIndicatorAPI();
-
-  // ProfileKeyedAPI implementation.
-  static ProfileKeyedAPIFactory<SystemIndicatorAPI>* GetFactoryInstance();
-
- private:
-  friend class ProfileKeyedAPIFactory<SystemIndicatorAPI>;
-
-  // ProfileKeyedAPI implementation.
-  static const char* service_name() {
-    return "SystemIndicatorAPI";
-  }
-  static const bool kServiceIsNULLWhileTesting = true;
-
-  DISALLOW_COPY_AND_ASSIGN(SystemIndicatorAPI);
-};
-
 class SystemIndicatorSetIconFunction : public ExtensionActionSetIconFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("systemIndicator.setIcon", SYSTEMINDICATOR_SETICON)
 
  protected:
   virtual ~SystemIndicatorSetIconFunction() {}
 };
 
 class SystemIndicatorEnableFunction : public ExtensionActionShowFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("systemIndicator.enable", SYSTEMINDICATOR_ENABLE)
 
  protected:
   virtual ~SystemIndicatorEnableFunction() {}
 };
 
 class SystemIndicatorDisableFunction : public ExtensionActionHideFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("systemIndicator.disable", SYSTEMINDICATOR_DISABLE)
 
  protected:
   virtual ~SystemIndicatorDisableFunction() {}
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_API_H_