Add experimental.alarms API to allow lazy background pages to

chrome/browser/extensions/extension_module.h

 // Copyright (c) 2011 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_EXTENSION_MODULE_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_MODULE_H__
 #pragma once
 
 #include "chrome/browser/extensions/extension_function.h"
 
 class ExtensionPrefs;
 
+class ExtensionModuleEventRouter {
+ public:
+  // Dispatches the onInstalled event to the given extension.
+  static void DispatchOnInstalledEvent(Profile* profile,
+                                       const Extension* extension);
+};
+
 class SetUpdateUrlDataFunction : public SyncExtensionFunction {
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("extension.setUpdateUrlData");
 
  private:
   ExtensionPrefs* extension_prefs();
 };
 
 class IsAllowedIncognitoAccessFunction : public SyncExtensionFunction {
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("extension.isAllowedIncognitoAccess");
 };
 
 class IsAllowedFileSchemeAccessFunction : public SyncExtensionFunction {
  protected:
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("extension.isAllowedFileSchemeAccess");
 };
+
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MODULE_H__