Implement sql::Connection::RazeAndClose().

chrome/browser/extensions/activity_database.h

 // Copyright (c) 2013 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 CHROME_BROWSER_EXTENSIONS_ACTIVITY_DATABASE_H_
 #define CHROME_BROWSER_EXTENSIONS_ACTIVITY_DATABASE_H_
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted_memory.h"
@@ skipping 27 matching lines @@
 
   // Record a APIAction in the database.
   void RecordAPIAction(scoped_refptr<APIAction> action);
 
   // Record a BlockedAction in the database.
   void RecordBlockedAction(scoped_refptr<BlockedAction> action);
 
   // Record an Action in the database.
   void RecordAction(scoped_refptr<Action> action);
 
+  // Break any outstanding transactions, raze the database, and close
+  // it.  Future calls on the current database handle will fail, when
+  // next opened the database will be empty.
   void KillDatabase();
 
   bool initialized() const { return initialized_; }
 
   // Standard db operation wrappers.
   void BeginTransaction();
   void CommitTransaction();
   void RollbackTransaction();
   bool Raze();
   void Close();
 
  private:
   friend class base::RefCountedThreadSafe<ActivityDatabase>;
 
   virtual ~ActivityDatabase();
 
   sql::InitStatus InitializeTable(const char* table_name,
                                   const char* table_structure);
 
   sql::Connection db_;
   bool initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(ActivityDatabase);
 };
 
 }  // namespace extensions
 #endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_DATABASE_H_
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