Add DISABLE_TCP_TRANSPORT flag in the Transport API.

ppapi/c/dev/ppb_transport_dev.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.
  */
 #ifndef PPAPI_C_PPB_TRANSPORT_DEV_H_
 #define PPAPI_C_PPB_TRANSPORT_DEV_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_module.h"
@@ skipping 35 matching lines @@
   // connections.
   PP_TRANSPORTPROPERTY_TCP_SEND_WINDOW = 6,
 
   // Boolean value that disables Neagle's algorithm when set to
   // true. When Neagle's algorithm is disabled, all outgoing packets
   // are sent as soon as possible. When set to false (by default) data
   // may be buffered until there is a sufficient amount to send.
   PP_TRANSPORTPROPERTY_TCP_NO_DELAY = 7,
 
   // Delay for ACK packets in milliseconds. By default set to 100ms.
-  PP_TRANSPORTPROPERTY_TCP_ACK_DELAY = 8
+  PP_TRANSPORTPROPERTY_TCP_ACK_DELAY = 8,
+
+  // Boolean value that disables TCP-based transports when set to
+  // true. By default set to false.
+  PP_TRANSPORTPROPERTY_DISABLE_TCP_TRANSPORT = 9
 } PP_TransportProperty;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_TransportProperty, 4);
 
 typedef enum {
   // RFC5766 compliant relay server.
   PP_TRANSPORTRELAYMODE_TURN = 0,
 
   // Legacy Google relay server.
   PP_TRANSPORTRELAYMODE_GOOGLE = 1
 } PP_TransportRelayMode;
@@ skipping 52 matching lines @@
   int32_t (*Send)(PP_Resource transport,
                   const void* data,
                   uint32_t len,
                   struct PP_CompletionCallback cb);
 
   // Disconnects from the remote peer.
   int32_t (*Close)(PP_Resource transport);
 };
 
 #endif  /* PPAPI_C_PPB_TRANSPORT_DEV_H_ */