Add DISABLE_TCP_TRANSPORT flag in the Transport API.

webkit/plugins/ppapi/ppb_transport_impl.cc

Index: webkit/plugins/ppapi/ppb_transport_impl.cc
diff --git a/webkit/plugins/ppapi/ppb_transport_impl.cc b/webkit/plugins/ppapi/ppb_transport_impl.cc
index 5836b5f60c773ab0c65ea088dae7790cdc6aa434..063f9365ec5f5dae6f8b3fa5be3626ba3fde5074 100644
--- a/webkit/plugins/ppapi/ppb_transport_impl.cc
+++ b/webkit/plugins/ppapi/ppb_transport_impl.cc
@@ -178,9 +178,6 @@ int32_t PPB_Transport_Impl::SetProperty(PP_TransportProperty property,
     }
 
     case PP_TRANSPORTPROPERTY_TCP_RECEIVE_WINDOW: {
-      if (!use_tcp_)
-        return PP_ERROR_BADARGUMENT;
-
       int32_t int_value = value.value.as_int;
       if (value.type != PP_VARTYPE_INT32 || int_value < kMinBufferSize ||
           int_value > kMaxBufferSize) {
@@ -226,6 +223,18 @@ int32_t PPB_Transport_Impl::SetProperty(PP_TransportProperty property,
       break;
     }
 
+    case PP_TRANSPORTPROPERTY_PROTOCOLS: {
+      if (!use_tcp_)
+        return PP_ERROR_BADARGUMENT;
+
+      if (value.type != PP_VARTYPE_INT32) {
+        return PP_ERROR_BADARGUMENT;
+      }
+
+      config_.protocols = value.value.as_int;
+      break;
+    }
+
     default:
       return PP_ERROR_BADARGUMENT;
   }