Revert of Initialize and reset V4LocalDBManager. Instantiate V4Stores.

components/safe_browsing_db/v4_store.h

Index: components/safe_browsing_db/v4_store.h
diff --git a/components/safe_browsing_db/v4_store.h b/components/safe_browsing_db/v4_store.h
index c1294c723101a5a09ff712cfd98ab473b3542db1..be9ff9da954843a17fa8704f90d753b22d62bc3f 100644
--- a/components/safe_browsing_db/v4_store.h
+++ b/components/safe_browsing_db/v4_store.h
@@ -5,26 +5,9 @@
 #ifndef COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
 #define COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
 
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner.h"
-
 namespace safe_browsing {
 
 class V4Store {
- public:
-  // The |task_runner| is used to ensure that the operations in this file are
-  // performed on the correct thread. |store_path| specifies the location on
-  // disk for this file.
-  V4Store(const scoped_refptr<base::SequencedTaskRunner>& task_runner,
-          const base::FilePath& store_path);
-  virtual ~V4Store();
-
-  // Reset internal state and delete the backing file.
-  virtual bool Reset();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(V4Store);
 };
 
 }  // namespace safe_browsing