Stub out sqlite3Preload when using system library.

chrome/common/sqlite_utils.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/common/sqlite_utils.h"
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/string16.h"
 
@@ skipping 389 matching lines @@
   const char* s = column_text(index);
   str->assign(s ? UTF8ToWide(s) : std::wstring());
   return (s != NULL);
 }
 
 std::wstring SQLStatement::column_wstring(int index) {
   std::wstring wstr;
   column_wstring(index, &wstr);
   return wstr;
 }
+
+#if defined(USE_SYSTEM_SQLITE)
+// This function is a local change to sqlite3 which doesn't exist when one is
+// using the system sqlite library. Thus, we stub it out here.
+int sqlite3Preload(sqlite3* db) {
+  return 0;
+}
+#endif