Consolidate manifest handler registration.

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

Index: chrome/browser/extensions/api/system_indicator/system_indicator_api.h
diff --git a/chrome/browser/extensions/api/system_indicator/system_indicator_api.h b/chrome/browser/extensions/api/system_indicator/system_indicator_api.h
index a890793bb06fce1bca5bc706812b62825df194b4..dbe1dbb0e40d7f64d0a8800958a449e818191919 100644
--- a/chrome/browser/extensions/api/system_indicator/system_indicator_api.h
+++ b/chrome/browser/extensions/api/system_indicator/system_indicator_api.h
@@ -6,33 +6,12 @@
 #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)