Remove IPC::Endpoint.

ipc/ipc_channel_reader.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_reader.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 170 matching lines @@
 
 bool ChannelReader::HandleTranslatedMessage(Message* translated_message) {
   // Immediately handle internal messages.
   if (IsInternalMessage(*translated_message)) {
     EMIT_TRACE_EVENT(*translated_message);
     HandleInternalMessage(*translated_message);
     HandleDispatchError(*translated_message);
     return true;
   }
 
-  translated_message->set_sender_pid(GetSenderPID());
-
   return HandleExternalMessage(translated_message);
 }
 
 bool ChannelReader::HandleExternalMessage(Message* external_message) {
   if (!GetNonBrokeredAttachments(external_message))
     return false;
 
   DispatchMessage(external_message);
   return true;
 }
 
 void ChannelReader::HandleDispatchError(const Message& message) {
   if (message.dispatch_error())
     listener_->OnBadMessageReceived(message);
 }
 
 bool ChannelReader::CheckMessageSize(size_t size) {
   if (size <= Channel::kMaximumMessageSize) {
     return true;
   }
   input_overflow_buf_.clear();
   LOG(ERROR) << "IPC message is too big: " << size;
   return false;
 }
 
 }  // namespace internal
 }  // namespace IPC