Fix ExtensionServiceTest.ClearExtensionData flakiness

content/browser/storage_partition_impl.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 CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_
 #define CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
@@ skipping 30 matching lines @@
   virtual fileapi::FileSystemContext* GetFileSystemContext() OVERRIDE;
   virtual webkit_database::DatabaseTracker* GetDatabaseTracker() OVERRIDE;
   virtual DOMStorageContextWrapper* GetDOMStorageContext() OVERRIDE;
   virtual IndexedDBContextImpl* GetIndexedDBContext() OVERRIDE;
   virtual ServiceWorkerContextWrapper* GetServiceWorkerContext() OVERRIDE;
 
   virtual void ClearDataForOrigin(
       uint32 remove_mask,
       uint32 quota_storage_remove_mask,
       const GURL& storage_origin,
-      net::URLRequestContextGetter* request_context_getter) OVERRIDE;
+      net::URLRequestContextGetter* request_context_getter,
+      const base::Closure& callback) OVERRIDE;
   virtual void ClearData(uint32 remove_mask,
                          uint32 quota_storage_remove_mask,
                          const GURL& storage_origin,
                          const OriginMatcherFunction& origin_matcher,
                          const base::Time begin,
                          const base::Time end,
                          const base::Closure& callback) OVERRIDE;
 
   WebRTCIdentityStore* GetWebRTCIdentityStore();
 
@@ skipping 94 matching lines @@
   scoped_refptr<ServiceWorkerContextWrapper> service_worker_context_;
   scoped_refptr<WebRTCIdentityStore> webrtc_identity_store_;
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
 
   DISALLOW_COPY_AND_ASSIGN(StoragePartitionImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_