IPC: Generalize FileDescriptorSet to MessageAttachmentSet

ipc/ipc_message.h

 // 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.
 
 #ifndef IPC_IPC_MESSAGE_H_
 #define IPC_IPC_MESSAGE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
 #include "base/files/file.h"
 #include "base/pickle.h"
 #include "ipc/ipc_export.h"
 
 #if !defined(NDEBUG)
 #define IPC_MESSAGE_LOG_ENABLED
 #endif
 
 #if defined(OS_POSIX)
 #include "base/memory/ref_counted.h"
 #endif
 
-class FileDescriptorSet;
-
 namespace IPC {
 
 //------------------------------------------------------------------------------
 
 struct LogData;
+class MessageAttachmentSet;
 
 class IPC_EXPORT Message : public Pickle {
  public:
   enum PriorityValue {
     PRIORITY_LOW = 1,
     PRIORITY_NORMAL,
     PRIORITY_HIGH
   };
 
   // Bit values used in the flags field.
@@ skipping 202 matching lines @@
   }
   const Header* header() const {
     return headerT<Header>();
   }
 
   void Init();
 
   // Used internally to support IPC::Listener::OnBadMessageReceived.
   mutable bool dispatch_error_;
 
-#if defined(OS_POSIX)
   // The set of file descriptors associated with this message.
-  scoped_refptr<FileDescriptorSet> file_descriptor_set_;
+  scoped_refptr<MessageAttachmentSet> attachment_set_;
 
-  // Ensure that a FileDescriptorSet is allocated
-  void EnsureFileDescriptorSet();
+  // Ensure that a MessageAttachmentSet is allocated
+  void EnsureMessageAttachmentSet();
 
-  FileDescriptorSet* file_descriptor_set() {
-    EnsureFileDescriptorSet();
-    return file_descriptor_set_.get();
+  MessageAttachmentSet* attachment_set() {
+    EnsureMessageAttachmentSet();
+    return attachment_set_.get();
   }
-  const FileDescriptorSet* file_descriptor_set() const {
-    return file_descriptor_set_.get();
+  const MessageAttachmentSet* attachment_set() const {
+    return attachment_set_.get();
   }
-#endif
 
 #ifdef IPC_MESSAGE_LOG_ENABLED
   // Used for logging.
   mutable int64 received_time_;
   mutable std::string output_params_;
   mutable LogData* log_data_;
   mutable bool dont_log_;
 #endif
 };
 
 //------------------------------------------------------------------------------
 
 }  // namespace IPC
 
 enum SpecialRoutingIDs {
   // indicates that we don't have a routing ID yet.
   MSG_ROUTING_NONE = -2,
 
   // indicates a general message not sent to a particular tab.
   MSG_ROUTING_CONTROL = kint32max,
 };
 
 #define IPC_REPLY_ID 0xFFFFFFF0  // Special message id for replies
 #define IPC_LOGGING_ID 0xFFFFFFF1  // Special message id for logging
 
 #endif  // IPC_IPC_MESSAGE_H_