sync: Put sqlite_utils.* into sqlite_utils namespace.

chrome/browser/sync/syncable/directory_backing_store.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 CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
 #define CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
 #pragma once
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "chrome/browser/sync/syncable/dir_open_result.h"
 #include "chrome/browser/sync/syncable/model_type.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 
 extern "C" {
 struct sqlite3;
-struct sqlite3_stmt;
 }
 
+namespace sqlite_utils {
 class SQLStatement;
+}
 
 namespace sync_pb {
 class EntitySpecifics;
 }
 
 namespace syncable {
 
 struct ColumnSpec;
 typedef Directory::MetahandlesIndex MetahandlesIndex;
 
@@ skipping 126 matching lines @@
   bool CheckIntegrity(sqlite3* handle, std::string* error) const;
 
   // Migration utilities.
   bool AddColumn(const ColumnSpec* column);
   bool RefreshColumns();
   bool SetVersion(int version);
   int GetVersion();
   bool MigrateToSpecifics(const char* old_columns,
                           const char* specifics_column,
                           void(*handler_function) (
-                              SQLStatement* old_value_query,
+                              sqlite_utils::SQLStatement* old_value_query,
                               int old_value_column,
                               sync_pb::EntitySpecifics* mutable_new_value));
 
   // Individual version migrations.
   bool MigrateVersion67To68();
   bool MigrateVersion68To69();
   bool MigrateVersion69To70();
   bool MigrateVersion70To71();
   bool MigrateVersion71To72();
   bool MigrateVersion72To73();
@@ skipping 16 matching lines @@
   // Set to true if migration left some old columns around that need to be
   // discarded.
   bool needs_column_refresh_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectoryBackingStore);
 };
 
 }  // namespace syncable
 
 #endif  // CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_