Add getFileSize support to chromium...

chrome/common/render_messages_internal.h

 // Copyright (c) 2009 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <string>
 #include <vector>
@@ skipping 1395 matching lines @@
 
   // Message sent from the renderer to the browser to request that the browser
   // close all idle sockets.  Used for debugging/testing.
   IPC_MESSAGE_CONTROL0(ViewHostMsg_CloseIdleConnections)
 
   // Message sent from the renderer to the browser to request that the browser
   // close all idle sockets.  Used for debugging/testing.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_SetCacheMode,
                        bool /* enabled */)
 
+  // Get file size in bytes. Set result to -1 if failed to get the file size.
+  IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_GetFileSize,
+                              FilePath /* path */,
+                              int64 /* result */)
+
   //---------------------------------------------------------------------------
   // Utility process host messages:
   // These are messages from the utility process to the browser.  They're here
   // because we ran out of spare message types.
 
   // Reply when the utility process is done unpacking an extension.  |manifest|
   // is the parsed manifest.json file.  The unpacker should also have written
   // out a file containing decoded images from the extension.  See
   // ExtensionUnpacker for details.
   IPC_MESSAGE_CONTROL1(UtilityHostMsg_UnpackExtension_Succeeded,
@@ skipping 13 matching lines @@
   // web resource.  |error_message| is a user-readable explanation of what
   // went wrong.
   IPC_MESSAGE_CONTROL1(UtilityHostMsg_UnpackWebResource_Failed,
                        std::string /* error_message, if any */)
 
   // Sent by the renderer process to acknowledge receipt of a
   // ViewMsg_CSSInsertRequest message and css has been inserted into the frame.
   IPC_MESSAGE_ROUTED0(ViewHostMsg_OnCSSInserted)
 
 IPC_END_MESSAGES(ViewHost)