Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/extensions/extension_gcm_app_handler.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_gcm_app_handler.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 113 matching lines @@
         FROM_HERE,
         base::Bind(&ExtensionGCMAppHandler::RemoveDummyAppHandler,
                    weak_factory_.GetWeakPtr()));
   }
 
   RemoveAppHandler(extension->id());
 }
 
 void ExtensionGCMAppHandler::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
-    const Extension* extension) {
+    const Extension* extension,
+    extensions::UninstallReason reason) {
   if (IsGCMPermissionEnabled(extension)) {
     GetGCMDriver()->Unregister(
         extension->id(),
         base::Bind(&ExtensionGCMAppHandler::OnUnregisterCompleted,
                    weak_factory_.GetWeakPtr(),
                    extension->id()));
     RemoveAppHandler(extension->id());
   }
 }
 
@@ skipping 16 matching lines @@
 
 void ExtensionGCMAppHandler::AddAppHandler(const std::string& app_id) {
   GetGCMDriver()->AddAppHandler(app_id, this);
 }
 
 void ExtensionGCMAppHandler::RemoveAppHandler(const std::string& app_id) {
   GetGCMDriver()->RemoveAppHandler(app_id);
 }
 
 }  // namespace extensions