Add "PRIVATE" to the enum names of some private Pepper networking APIs:

remoting/client/plugin/pepper_port_allocator.cc

 // 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.
 
 #include "remoting/client/plugin/pepper_port_allocator.h"
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/base/net_util.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 137 matching lines @@
 
   if (!stun_address_.IsUnresolved()) {
     return;
   }
 
   std::string hostname = stun_address_.hostname();
   uint16 port = stun_address_.port();
 
   PP_HostResolver_Private_Hint hint;
   hint.flags = 0;
-  hint.family = PP_NETADDRESSFAMILY_IPV4;
+  hint.family = PP_NETADDRESSFAMILY_PRIVATE_IPV4;
   int result = stun_address_resolver_.Resolve(
       hostname, port, hint,
       PpCompletionCallback(base::Bind(
           &PepperPortAllocatorSession::OnStunAddressResolved,
           weak_factory_.GetWeakPtr())));
 
   DCHECK_EQ(result, PP_OK_COMPLETIONPENDING);
 }
 
 void PepperPortAllocatorSession::OnStunAddressResolved(int32_t result) {
@@ skipping 163 matching lines @@
     const std::string& content_name,
     int component,
     const std::string& ice_username_fragment,
     const std::string& ice_password) {
    return new PepperPortAllocatorSession(
        this, content_name, component, ice_username_fragment, ice_password,
        stun_hosts(), relay_hosts(), relay_token(), instance_);
 }
 
 }  // namespace remoting