Change WebSocketChannel to pass data via IOBuffer

net/websockets/websocket_event_interface.h

Index: net/websockets/websocket_event_interface.h
diff --git a/net/websockets/websocket_event_interface.h b/net/websockets/websocket_event_interface.h
index 761f356c21760088cc337f1b81d6c3b99505c792..9c7d4f7c72d4ae76e32d01ccf3591afb5b49bf91 100644
--- a/net/websockets/websocket_event_interface.h
+++ b/net/websockets/websocket_event_interface.h
@@ -13,12 +13,14 @@
 
 #include "base/compiler_specific.h"  // for WARN_UNUSED_RESULT
 #include "base/macros.h"
+#include "base/memory/ref_counted.h"
 #include "net/base/net_export.h"
 
 class GURL;
 
 namespace net {
 
+class IOBuffer;
 class SSLInfo;
 struct WebSocketHandshakeRequestInfo;
 struct WebSocketHandshakeResponseInfo;
@@ -50,7 +52,8 @@ class NET_EXPORT WebSocketEventInterface {
   virtual ChannelState OnDataFrame(
       bool fin,
       WebSocketMessageType type,
-      const std::vector<char>& data) WARN_UNUSED_RESULT = 0;
+      scoped_refptr<IOBuffer> buffer,
+      size_t buffer_size) WARN_UNUSED_RESULT = 0;
 
   // Called to provide more send quota for this channel to the renderer
   // process. Currently the quota units are always bytes of message body