Reland "Add enable_ipc_logging build argument"

ipc/ipc_channel_nacl.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 "ipc/ipc_channel_nacl.h"
 
 #include <errno.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <sys/types.h>
@@ skipping 181 matching lines @@
   read_queue_.clear();
   output_queue_.clear();
 }
 
 bool ChannelNacl::Send(Message* message) {
   DCHECK(!message->HasAttachments());
   DVLOG(2) << "sending message @" << message << " on channel @" << this
            << " with type " << message->type();
   std::unique_ptr<Message> message_ptr(message);
 
-#ifdef IPC_MESSAGE_LOG_ENABLED
+#if BUILDFLAG(IPC_MESSAGE_LOG_ENABLED)
   Logging::GetInstance()->OnSendMessage(message_ptr.get());
-#endif  // IPC_MESSAGE_LOG_ENABLED
+#endif  // BUILDFLAG(IPC_MESSAGE_LOG_ENABLED)
 
   TRACE_EVENT_WITH_FLOW0(TRACE_DISABLED_BY_DEFAULT("ipc.flow"),
                          "ChannelNacl::Send",
                          message->header()->flags,
                          TRACE_EVENT_FLAG_FLOW_OUT);
   output_queue_.push_back(std::move(message_ptr));
   if (!waiting_connect_)
     return ProcessOutgoingMessages();
 
   return true;
@@ skipping 168 matching lines @@
 
 // static
 std::unique_ptr<Channel> Channel::Create(
     const IPC::ChannelHandle& channel_handle,
     Mode mode,
     Listener* listener) {
   return base::MakeUnique<ChannelNacl>(channel_handle, mode, listener);
 }
 
 }  // namespace IPC