SyncSocket Transit Descriptor - refactoring

content/browser/renderer_host/media/audio_input_renderer_host.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 "content/browser/renderer_host/media/audio_input_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/memory/shared_memory.h"
 #include "base/metrics/histogram.h"
 #include "base/numerics/safe_math.h"
@@ skipping 160 matching lines @@
                                            &foreign_memory_handle)) {
     // If we failed to map and share the shared memory then close the audio
     // stream and send an error message.
     DeleteEntryOnError(entry, MEMORY_SHARING_FAILED);
     return;
   }
 
   AudioInputSyncWriter* writer =
       static_cast<AudioInputSyncWriter*>(entry->writer.get());
 
-#if defined(OS_WIN)
-  base::SyncSocket::Handle foreign_socket_handle;
-#else
-  base::FileDescriptor foreign_socket_handle;
-#endif
+  base::SyncSocket::TransitDescriptor socket_transit_descriptor;
 
   // If we failed to prepare the sync socket for the renderer then we fail
   // the construction of audio input stream.
-  if (!writer->PrepareForeignSocketHandle(PeerHandle(),
-                                          &foreign_socket_handle)) {
+  if (!writer->PrepareForeignSocket(PeerHandle(), &socket_transit_descriptor)) {
     DeleteEntryOnError(entry, SYNC_SOCKET_ERROR);
     return;
   }
 
   LogMessage(entry->stream_id,
              "DoCompleteCreation => IPC channel and stream are now open",
              true);
 
   Send(new AudioInputMsg_NotifyStreamCreated(entry->stream_id,
-      foreign_memory_handle, foreign_socket_handle,
+      foreign_memory_handle, socket_transit_descriptor,
       entry->shared_memory.requested_size(),
       entry->shared_memory_segment_count));
 }
 
 void AudioInputRendererHost::DoSendRecordingMessage(
     media::AudioInputController* controller) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   // TODO(henrika): See crbug.com/115262 for details on why this method
   // should be implemented.
   AudioEntry* entry = LookupByController(controller);
@@ skipping 291 matching lines @@
   // TODO(hclam): Implement a faster look up method.
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     if (controller == i->second->controller.get())
       return i->second;
   }
   return NULL;
 }
 
 }  // namespace content