LevelDB storage for data reduction proxy to store data usage stats.

components/data_reduction_proxy/core/browser/db_data_owner.h

Index: components/data_reduction_proxy/core/browser/db_data_owner.h
diff --git a/components/data_reduction_proxy/core/browser/db_data_owner.h b/components/data_reduction_proxy/core/browser/db_data_owner.h
new file mode 100644
index 0000000000000000000000000000000000000000..2a80194e2d0dc9d88876e970374e61a09055d263
--- /dev/null
+++ b/components/data_reduction_proxy/core/browser/db_data_owner.h
@@ -0,0 +1,49 @@
+// 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 COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DB_SERVICE_H_
+#define COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DB_SERVICE_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/sequence_checker.h"
+
+namespace base {
+class FilePath;
+}  // namespace base
+
+namespace data_reduction_proxy {
+class DBDataStore;

[jeremyim, 2015/07/08 18:21:46]

Sorting

[Not at Google. Contact bengr, 2015/07/08 19:07:20]

Done.

+class DataUsageStore;
+class DataUsageBucket;
+
+typedef base::Callback<void(scoped_ptr<DataUsageBucket>)>
+    OnLoadDataUsageBucketCallback;
+
+// Contains and initializes all Data Reduction Proxy objects that have a
+// lifetime based on the DB thread.
+class DBDataOwner {
+ public:
+  explicit DBDataOwner(scoped_ptr<DBDataStore> store);
+  virtual ~DBDataOwner();
+
+  void InitializeOnDBThread();
+
+  void LoadCurrentDataUsageBucket(DataUsageBucket* bucket);
+
+  void StoreCurrentDataUsageBucket(scoped_ptr<DataUsageBucket> current);
+
+  base::WeakPtr<DBDataOwner> GetWeakPtr();
+
+ private:
+  scoped_ptr<DBDataStore> store_;
+  scoped_ptr<DataUsageStore> data_usage_;
+  base::SequenceChecker sequence_checker_;
+  base::WeakPtrFactory<DBDataOwner> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(DBDataOwner);
+};
+
+}  // namespace data_reduction_proxy
+#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DB_SERVICE_H_