Remove some Profile-keyed factory boilerplate: management omnibox preference push_messaging.

chrome/browser/extensions/api/cookies/cookies_api.h

Index: chrome/browser/extensions/api/cookies/cookies_api.h
diff --git a/chrome/browser/extensions/api/cookies/cookies_api.h b/chrome/browser/extensions/api/cookies/cookies_api.h
index 95fea13c74c3233c471778ffcc1fb3ffc6aad17a..5eddcd27cac60712c7853fff07dca80375ec9a69 100644
--- a/chrome/browser/extensions/api/cookies/cookies_api.h
+++ b/chrome/browser/extensions/api/cookies/cookies_api.h
@@ -201,6 +201,9 @@ class CookiesAPI : public ProfileKeyedAPI,
   // ProfileKeyedService implementation.
   virtual void Shutdown() OVERRIDE;
 
+  // ProfileKeyedAPI implementation.
+  static ProfileKeyedAPIFactory<CookiesAPI>* GetFactoryInstance();
+
   // EventRouter::Observer implementation.
   virtual void OnListenerAdded(const extensions::EventListenerInfo& details)
       OVERRIDE;
@@ -222,10 +225,6 @@ class CookiesAPI : public ProfileKeyedAPI,
   DISALLOW_COPY_AND_ASSIGN(CookiesAPI);
 };
 
-template <>
-ProfileKeyedAPIFactory<CookiesAPI>*
-ProfileKeyedAPIFactory<CookiesAPI>::GetInstance();
-
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_COOKIES_COOKIES_API_H_