Adding BrowsingDataPartitionClient

ios/web/public/browsing_data_partition_client.h

+// Copyright 2015 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 IOS_WEB_PUBLIC_BROWSING_DATA_PARTITION_CLIENT_H_
+#define IOS_WEB_PUBLIC_BROWSING_DATA_PARTITION_CLIENT_H_
+
+#include "base/macros.h"
+
+namespace web {
+
+class BrowsingDataPartitionClient;
+
+// Setter and getter for the client.
+void SetBrowsingDataPartitionClient(BrowsingDataPartitionClient* client);
+BrowsingDataPartitionClient* GetBrowsingDataPartitionClient();
+
+// Interface that the embedder of the web layer implements. Informs embedders
+// when the BrowsingDataPartition is synchronized.
+class BrowsingDataPartitionClient {
+ public:
+  BrowsingDataPartitionClient();
+  virtual ~BrowsingDataPartitionClient();
+
+  // Called when web::BrowsingDataPartition becomes synchronized.
+  virtual void DidBecomeSynchronized() const {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BrowsingDataPartitionClient);
+};
+
+}  // namespace web
+
+#endif  // IOS_NET_COOKIES_COOKIE_STORE_IOS_CLIENT_H_