Add WebSocketError to indicate decoding failure reason

net/websockets/websocket_frame.h

 // Copyright (c) 2012 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 NET_WEBSOCKETS_WEBSOCKET_FRAME_H_
 #define NET_WEBSOCKETS_WEBSOCKET_FRAME_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 class IOBufferWithSize;
 
+// Error values for WebSocket framing.
+// This values are compatible to RFC6455 defined status codes.
+enum WebSocketError {
+  WS_OK = 1000,
+  WS_ERR_PROTOCOL_ERROR = 1002,
+  WS_ERR_MESSAGE_TOO_BIG = 1009

[mmenke, 2012/08/01 14:44:59]

It's a bit long, but I think it's worth writing WEB_SOCKET out, to make the code
clearer.  Otherwise, looks a bit too much like Windows socket errors for my
tastes (They actually use WSA, but look kinda similar).  Also, Google style
guide generally discourages abbreviations.

[Takashi Toyoshima, 2012/08/02 08:11:35]

Done.

+};

[mmenke, 2012/08/01 14:44:59]

Wonder if it makes sense to move these to their own file.  Think they'll be
useful in files that don't need access to WebSocketFrameHeader?

[Takashi Toyoshima, 2012/08/02 08:11:35]

Done.

+
 // Represents a WebSocket frame header.
 //
 // Members of this class correspond to each element in WebSocket frame header
 // (see http://tools.ietf.org/html/rfc6455#section-5.2).
 struct NET_EXPORT_PRIVATE WebSocketFrameHeader {
   typedef int OpCode;
   static const OpCode kOpCodeContinuation;
   static const OpCode kOpCodeText;
   static const OpCode kOpCodeBinary;
   static const OpCode kOpCodeClose;
@@ skipping 96 matching lines @@
 // used for unmasking a WebSocket frame.
 NET_EXPORT_PRIVATE void MaskWebSocketFramePayload(
     const WebSocketMaskingKey& masking_key,
     uint64 frame_offset,
     char* data,
     int data_size);
 
 }  // namespace net
 
 #endif  // NET_WEBSOCKETS_WEBSOCKET_FRAME_H_