ipc: Update MachPortMac ownership semantics.

ipc/ipc_message_attachment_set.cc

 // 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.
 
 #include "ipc/ipc_message_attachment_set.h"
 
 #include <algorithm>
 #include "base/logging.h"
 #include "base/posix/eintr_wrapper.h"
 #include "ipc/brokerable_attachment.h"
@@ skipping 113 matching lines @@
   consumed_descriptor_highwater_ = index + 1;
 
   return attachments_[index];
 }
 
 void MessageAttachmentSet::CommitAll() {
   attachments_.clear();
   consumed_descriptor_highwater_ = 0;
 }
 
-std::vector<const BrokerableAttachment*>
-MessageAttachmentSet::PeekBrokerableAttachments() const {
-  std::vector<const BrokerableAttachment*> output;
+std::vector<BrokerableAttachment*>
+MessageAttachmentSet::GetBrokerableAttachments() const {
+  std::vector<BrokerableAttachment*> output;
   for (const scoped_refptr<MessageAttachment>& attachment : attachments_) {
     if (attachment->GetType() ==
         MessageAttachment::TYPE_BROKERABLE_ATTACHMENT) {
       output.push_back(static_cast<BrokerableAttachment*>(attachment.get()));
     }
   }
   return output;
 }
 
 void MessageAttachmentSet::ReplacePlaceholderWithAttachment(
@@ skipping 57 matching lines @@
   for (unsigned i = 0; i < count; ++i)
     AddAttachment(
         new internal::PlatformFileAttachment(base::ScopedFD(buffer[i])));
 }
 
 #endif  // OS_POSIX
 
 }  // namespace IPC