Merge from Chromium at DEPS revision r205460

This commit was generated by merge_to_master.py.

Change-Id: I4a744a5e426bd3bb378d887cfa56fe054742a540
diff --git a/webkit/browser/dom_storage/local_storage_database_adapter.h b/webkit/browser/dom_storage/local_storage_database_adapter.h
new file mode 100644
index 0000000..3f48e05
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+++ b/webkit/browser/dom_storage/local_storage_database_adapter.h
@@ -0,0 +1,50 @@
+// 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 WEBKIT_BROWSER_DOM_STORAGE_LOCAL_STORAGE_DATABASE_ADAPTER_H_
+#define WEBKIT_BROWSER_DOM_STORAGE_LOCAL_STORAGE_DATABASE_ADAPTER_H_
+
+#include "base/gtest_prod_util.h"
+#include "base/memory/scoped_ptr.h"
+#include "webkit/browser/dom_storage/dom_storage_database_adapter.h"
+#include "webkit/storage/webkit_storage_export.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace dom_storage {
+
+class DomStorageDatabase;
+
+class WEBKIT_STORAGE_EXPORT LocalStorageDatabaseAdapter :
+      public DomStorageDatabaseAdapter {
+ public:
+  explicit LocalStorageDatabaseAdapter(const base::FilePath& path);
+  virtual ~LocalStorageDatabaseAdapter();
+  virtual void ReadAllValues(ValuesMap* result) OVERRIDE;
+  virtual bool CommitChanges(bool clear_all_first,
+                             const ValuesMap& changes) OVERRIDE;
+  virtual void DeleteFiles() OVERRIDE;
+  virtual void Reset() OVERRIDE;
+
+ protected:
+  // Constructor that uses an in-memory sqlite database, for testing.
+  LocalStorageDatabaseAdapter();
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, BackingDatabaseOpened);
+  FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, CommitChangesAtShutdown);
+  FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, CommitTasks);
+  FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, DeleteOrigin);
+  FRIEND_TEST_ALL_PREFIXES(DomStorageAreaTest, PurgeMemory);
+
+  scoped_ptr<DomStorageDatabase> db_;
+
+  DISALLOW_COPY_AND_ASSIGN(LocalStorageDatabaseAdapter);
+};
+
+}  // namespace dom_storage
+
+#endif  // WEBKIT_BROWSER_DOM_STORAGE_LOCAL_STORAGE_DATABASE_ADAPTER_H_