Add SetFileSize() IPC for WebSQL.

content/common/database_messages.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.
 
 // Multiply-included message file, no include guard.
 
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "ipc/ipc_platform_file.h"
 
@@ skipping 43 matching lines @@
 // Asks the browser process to return the size of a DB file
 IPC_SYNC_MESSAGE_CONTROL1_1(DatabaseHostMsg_GetFileSize,
                             base::string16 /* vfs file name */,
                             int64 /* the size of the given DB file */)
 
 // Asks the browser process for the amount of space available to an origin
 IPC_SYNC_MESSAGE_CONTROL1_1(DatabaseHostMsg_GetSpaceAvailable,
                             std::string /* origin identifier */,
                             int64 /* remaining space available */)
 
+// Asks the browser set the size of a DB file
+IPC_SYNC_MESSAGE_CONTROL2_1(DatabaseHostMsg_SetFileSize,
+                            base::string16 /* vfs file name */,
+                            int64 /* expected size of the given DB file */,
+                            bool /* indicates success */)
+
 // Notifies the browser process that a new database has been opened
 IPC_MESSAGE_CONTROL4(DatabaseHostMsg_Opened,
                      std::string /* origin identifier */,
                      base::string16 /* database name */,
                      base::string16 /* database description */,
                      int64 /* estimated size */)
 
 // Notifies the browser process that a database might have been modified
 IPC_MESSAGE_CONTROL2(DatabaseHostMsg_Modified,
                      std::string /* origin identifier */,
                      base::string16 /* database name */)
 
 // Notifies the browser process that a database is about to close
 IPC_MESSAGE_CONTROL2(DatabaseHostMsg_Closed,
                      std::string /* origin identifier */,
                      base::string16 /* database name */)
 
 // Sent when a sqlite error indicates the database is corrupt.
 IPC_MESSAGE_CONTROL3(DatabaseHostMsg_HandleSqliteError,
                      std::string /* origin identifier */,
                      base::string16 /* database name */,
                      int  /* error */)