base::Bind: Convert AppCacheHelper::DeleteAppCachesForOrigin.

webkit/appcache/mock_appcache_service.h

Index: webkit/appcache/mock_appcache_service.h
diff --git a/webkit/appcache/mock_appcache_service.h b/webkit/appcache/mock_appcache_service.h
index f803c286ed82514be888bc8bf62b0280d9be2941..cd51d11be6d5267720f1522af84b888946582166 100644
--- a/webkit/appcache/mock_appcache_service.h
+++ b/webkit/appcache/mock_appcache_service.h
@@ -26,7 +26,7 @@ class MockAppCacheService : public AppCacheService {
   // removing groups and caches in our mock storage instance.
   virtual void DeleteAppCachesForOrigin(
       const GURL& origin,
-      net::OldCompletionCallback* callback) OVERRIDE;
+      const net::CompletionCallback& callback) OVERRIDE;
 
   void set_quota_manager_proxy(quota::QuotaManagerProxy* proxy) {
     quota_manager_proxy_ = proxy;
@@ -37,6 +37,7 @@ class MockAppCacheService : public AppCacheService {
   }
 
   int delete_called_count() const { return delete_called_count_; }
+
  private:
   int mock_delete_appcaches_for_origin_result_;
   int delete_called_count_;