Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

extensions/browser/api/runtime/runtime_api.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 "extensions/browser/api/runtime/runtime_api.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 168 matching lines @@
       break;
     }
     case chrome::NOTIFICATION_EXTENSION_WILL_BE_INSTALLED_DEPRECATED: {
       const Extension* extension =
           content::Details<const InstalledExtensionInfo>(details)->extension;
       OnExtensionInstalled(extension);
       break;
     }
     case chrome::NOTIFICATION_EXTENSION_UNINSTALLED_DEPRECATED: {
       const Extension* extension =
-          content::Details<const Extension>(details).ptr();
+          content::Details<const UninstalledExtensionInfo>(details)->extension;
       OnExtensionUninstalled(extension);
       break;
     }
     default:
       NOTREACHED();
       break;
   }
 }
 
 void RuntimeAPI::OnExtensionsReady() {
@@ skipping 330 matching lines @@
   content::ChildProcessSecurityPolicy* policy =
       content::ChildProcessSecurityPolicy::GetInstance();
   policy->GrantReadFileSystem(renderer_id, filesystem_id);
   base::DictionaryValue* dict = new base::DictionaryValue();
   dict->SetString("fileSystemId", filesystem_id);
   dict->SetString("baseName", relative_path);
   return RespondNow(OneArgument(dict));
 }
 
 }  // namespace extensions