Revert of Extract RuntimeEventRouter from extensions Runtime API

extensions/browser/api/runtime/runtime_event_router.h

-// Copyright 2014 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 EXTENSIONS_BROWSER_API_RUNTIME_RUNTIME_EVENT_ROUTER_H_
-#define EXTENSIONS_BROWSER_API_RUNTIME_RUNTIME_EVENT_ROUTER_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "chrome/common/extensions/api/runtime.h"
-
-namespace base {
-class DictionaryValue;
-class Version;
-}
-
-namespace content {
-class BrowserContext;
-};
-
-namespace extensions {
-
-// Dispatches events to extensions such as onStartup, onInstalled, etc.
-class RuntimeEventRouter {
- public:
-  // Dispatches the onStartup event to all currently-loaded extensions.
-  static void DispatchOnStartupEvent(content::BrowserContext* context,
-                                     const std::string& extension_id);
-
-  // Dispatches the onInstalled event to the given extension.
-  static void DispatchOnInstalledEvent(content::BrowserContext* context,
-                                       const std::string& extension_id,
-                                       const base::Version& old_version,
-                                       bool chrome_updated);
-
-  // Dispatches the onUpdateAvailable event to the given extension.
-  static void DispatchOnUpdateAvailableEvent(
-      content::BrowserContext* context,
-      const std::string& extension_id,
-      const base::DictionaryValue* manifest);
-
-  // Dispatches the onBrowserUpdateAvailable event to all extensions.
-  static void DispatchOnBrowserUpdateAvailableEvent(
-      content::BrowserContext* context);
-
-  // Dispatches the onRestartRequired event to the given app.
-  static void DispatchOnRestartRequiredEvent(
-      content::BrowserContext* context,
-      const std::string& app_id,
-      api::runtime::OnRestartRequired::Reason reason);
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(RuntimeEventRouter);
-};
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_BROWSER_API_RUNTIME_RUNTIME_EVENT_ROUTER_H_