Create new Autofill tables as part of DB migration.

components/webdata/common/web_database_table.h

 // Copyright (c) 2011 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_WEBDATA_COMMON_WEB_DATABASE_TABLE_H_
 #define COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_TABLE_H_
 
 #include "base/logging.h"
 #include "components/webdata/common/webdata_export.h"
 
@@ skipping 11 matching lines @@
   // of the type's statics.
   typedef void* TypeKey;
 
   // The object is not ready for use until Init() has been called.
   WebDatabaseTable();
   virtual ~WebDatabaseTable();
 
   // Retrieves the TypeKey for the concrete subtype.
   virtual TypeKey GetTypeKey() const = 0;
 
-  // Attempts to initialize the table and returns true if successful.
-  //
-  // The base class stores the members passed and always return true;
-  // subclasses may perform other initialization as needed.
-  virtual bool Init(sql::Connection* db, sql::MetaTable* meta_table);
+  // Stores the passed members as instance variables.
+  void Init(sql::Connection* db, sql::MetaTable* meta_table);
+
+  // Create all of the expected SQL tables if they do not already exist.
+  // Returns true on success, false on failure.
+  virtual bool CreateTablesIfNecessary() = 0;
 
   // In order to encourage developers to think about sync when adding or
   // or altering new tables, this method must be implemented. Please get in
   // contact with the sync team if you believe you're making a change that they
   // should be aware of (or if you could break something).
   // TODO(andybons): Implement something more robust.
   virtual bool IsSyncable() = 0;
 
   // Migrates this table to |version|. Returns false if there was
   // migration work to do and it failed, true otherwise.
@@ skipping 10 matching lines @@
   // exceeds that of WebDatabase, they should not be used in
   // ~WebDatabaseTable.
   sql::Connection* db_;
   sql::MetaTable* meta_table_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebDatabaseTable);
 };
 
 #endif  // COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_TABLE_H_