Reset registered events and dispatch runtime.onInstalled to all extensions when

chrome/browser/extensions/api/runtime/runtime_api.h

 // 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_RUNTIME_RUNTIME_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_RUNTIME_RUNTIME_API_H_
 
 #include "chrome/browser/extensions/extension_function.h"
 
 class Profile;
 class Version;
 
 namespace extensions {
 class Extension;
 class ExtensionHost;
 
 class RuntimeEventRouter {
  public:
   // Dispatches the onStartup event to all currently-loaded extensions.
   static void DispatchOnStartupEvent(Profile* profile,
                                      const std::string& extension_id);
 
   // Dispatches the onInstalled event to the given extension.
   static void DispatchOnInstalledEvent(Profile* profile,
                                        const std::string& extension_id,
-                                       const Version& old_version);
+                                       const Version& old_version,
+                                       bool chrome_updated);

[Aaron Boodman, 2012/09/18 00:19:03]

Is it possible to send old Chrome version as well? Could be useful.

[Matt Perry, 2012/09/18 00:57:03]

I thought about it, but decided against it, because it might not be available
(if we're updating from a version of chrome before this CL), so it would only
show up sometimes.

 };
 
 class RuntimeGetBackgroundPageFunction : public AsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION_NAME("runtime.getBackgroundPage");
 
  protected:
   virtual ~RuntimeGetBackgroundPageFunction() {}
   virtual bool RunImpl() OVERRIDE;
 
  private:
   void OnPageLoaded(ExtensionHost*);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_RUNTIME_RUNTIME_API_H_