Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/background/background_contents_service.cc

 // 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.
 
 #include "chrome/browser/background/background_contents_service.h"
 
 #include "apps/app_load_service.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 483 matching lines @@
           ShutdownAssociatedBackgroundContents(base::ASCIIToUTF16(
               content::Details<UnloadedExtensionInfo>(details)->
                   extension->id()));
           break;
       }
       break;
 
     case chrome::NOTIFICATION_EXTENSION_UNINSTALLED_DEPRECATED: {
       // Close the crash notification balloon for the app/extension, if any.
       ScheduleCloseBalloon(
-          content::Details<const Extension>(details).ptr()->id());
+          content::Details<extensions::UninstalledExtensionInfo>(details)
+              ->extension->id());
       break;
     }
 
     default:
       NOTREACHED();
       break;
   }
 }
 
 void BackgroundContentsService::RestartForceInstalledExtensionOnCrash(
@@ skipping 271 matching lines @@
     bool user_gesture,
     bool* was_blocked) {
   Browser* browser = chrome::FindLastActiveWithProfile(
       Profile::FromBrowserContext(new_contents->GetBrowserContext()),
       chrome::GetActiveDesktop());
   if (browser) {
     chrome::AddWebContents(browser, NULL, new_contents, disposition,
                            initial_pos, user_gesture, was_blocked);
   }
 }