[sql] Import reference version of SQLite 3.7.6.3.

third_party/sqlite/sqlite-src-3070603/src/os_win.c

 /*
 ** 2004 May 22
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 2766 matching lines @@
   assert(winSysInfo.dwAllocationGranularity > 0);
 #endif
 
   sqlite3_vfs_register(&winVfs, 1);
   return SQLITE_OK; 
 }
 int sqlite3_os_end(void){ 
   return SQLITE_OK;
 }
 
-void chromium_sqlite3_initialize_win_sqlite3_file(sqlite3_file* file, HANDLE handle) {
-  winFile* winSQLite3File = (winFile*)file;
-  memset(file, 0, sizeof(*file));
-  winSQLite3File->pMethod = &winIoMethod;
-  winSQLite3File->h = handle;
-}
-
 #endif /* SQLITE_OS_WIN */