Make SharedMemory track the size that was actually mapped

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/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
@@ skipping 140 matching lines @@
   // If we failed to prepare the sync socket for the renderer then we fail
   // the construction of audio input stream.
   if (!writer->PrepareForeignSocketHandle(peer_handle(),
                                           &foreign_socket_handle)) {
     DeleteEntryOnError(entry);
     return;
   }
 
   Send(new AudioInputMsg_NotifyStreamCreated(entry->stream_id,
       foreign_memory_handle, foreign_socket_handle,
-      entry->shared_memory.created_size(),
+      entry->shared_memory.requested_size(),
       entry->shared_memory_segment_count));
 }
 
 void AudioInputRendererHost::DoSendRecordingMessage(
     media::AudioInputController* controller) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   // TODO(henrika): See crbug.com/115262 for details on why this method
   // should be implemented.
 }
 
@@ skipping 296 matching lines @@
   for (SessionEntryMap::iterator it = session_entries_.begin();
        it != session_entries_.end(); ++it) {
     if (stream_id == it->second) {
       return it->first;
     }
   }
   return 0;
 }
 
 }  // namespace content