Cleanup many APIs to use ProfileKeyedAPI.

chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer_factory.h

Index: chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer_factory.h
diff --git a/chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer_factory.h b/chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer_factory.h
deleted file mode 100644
index 65c14fc0d2636b908c01e46842c8102124597284..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer_factory.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// 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_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_FACTORY_H_
-#define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_FACTORY_H_
-
-#include "base/memory/singleton.h"
-#include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
-
-class Profile;
-
-namespace extensions {
-
-class ExtensionSyncEventObserver;
-
-class ExtensionSyncEventObserverFactory
-    : public BrowserContextKeyedServiceFactory {
- public:
-  static ExtensionSyncEventObserver* GetForProfile(Profile* profile);
-
-  static ExtensionSyncEventObserverFactory* GetInstance();
-
- private:
-  friend struct DefaultSingletonTraits<ExtensionSyncEventObserverFactory>;
-
-  ExtensionSyncEventObserverFactory();
-  virtual ~ExtensionSyncEventObserverFactory();
-
-  // BrowserContextKeyedServiceFactory implementation.
-  virtual BrowserContextKeyedService* BuildServiceInstanceFor(
-      content::BrowserContext* profile) const OVERRIDE;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_FACTORY_H_