base::Bind: Convert Socket::Read.

net/http/http_proxy_client_socket.cc

 // 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.
 
 #include "net/http/http_proxy_client_socket.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/auth.h"
@@ skipping 196 matching lines @@
 base::TimeDelta HttpProxyClientSocket::GetConnectTimeMicros() const {
   if (transport_.get() && transport_->socket()) {
     return transport_->socket()->GetConnectTimeMicros();
   }
   NOTREACHED();
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
 int HttpProxyClientSocket::Read(IOBuffer* buf, int buf_len,
                                 OldCompletionCallback* callback) {
-  DCHECK(!old_user_callback_);
+  DCHECK(!old_user_callback_ && user_callback_.is_null());
   if (next_state_ != STATE_DONE) {
     // We're trying to read the body of the response but we're still trying
     // to establish an SSL tunnel through the proxy.  We can't read these
+    // bytes when establishing a tunnel because they might be controlled by
+    // an active network attacker.  We don't worry about this for HTTP
+    // because an active network attacker can already control HTTP sessions.
+    // We reach this case when the user cancels a 407 proxy auth prompt.
+    // See http://crbug.com/8473.
+    DCHECK_EQ(407, response_.headers->response_code());
+    LogBlockedTunnelResponse(response_.headers->response_code());
+
+    return ERR_TUNNEL_CONNECTION_FAILED;
+  }
+
+  return transport_->socket()->Read(buf, buf_len, callback);
+}
+int HttpProxyClientSocket::Read(IOBuffer* buf, int buf_len,
+                                const CompletionCallback& callback) {
+  DCHECK(!old_user_callback_ && user_callback_.is_null());
+  if (next_state_ != STATE_DONE) {
+    // We're trying to read the body of the response but we're still trying
+    // to establish an SSL tunnel through the proxy.  We can't read these
     // bytes when establishing a tunnel because they might be controlled by
     // an active network attacker.  We don't worry about this for HTTP
     // because an active network attacker can already control HTTP sessions.
     // We reach this case when the user cancels a 407 proxy auth prompt.
     // See http://crbug.com/8473.
     DCHECK_EQ(407, response_.headers->response_code());
     LogBlockedTunnelResponse(response_.headers->response_code());
 
     return ERR_TUNNEL_CONNECTION_FAILED;
   }
@@ skipping 266 matching lines @@
 
   if (http_stream_parser_->IsResponseBodyComplete())
     return DidDrainBodyForAuthRestart(true);
 
   // Keep draining.
   next_state_ = STATE_DRAIN_BODY;
   return OK;
 }
 
 }  // namespace net