Clean up potentially leaky use of base::DeletePointer.

content/browser/media/capture/web_contents_audio_input_stream.cc

 // Copyright (c) 2013 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/media/capture/web_contents_audio_input_stream.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 320 matching lines @@
   int main_render_frame_id;
   if (!WebContentsCaptureUtil::ExtractTabCaptureTarget(
           device_id, &render_process_id, &main_render_frame_id)) {
     return NULL;
   }
 
   return new WebContentsAudioInputStream(
       render_process_id, main_render_frame_id,
       audio_mirroring_manager,
       new WebContentsTracker(false),
-      new media::VirtualAudioInputStream(
-          params, worker_task_runner,
-          media::VirtualAudioInputStream::AfterCloseCallback()));
+      new media::VirtualAudioInputStream(params, worker_task_runner, false));
 }
 
 WebContentsAudioInputStream::WebContentsAudioInputStream(
     int render_process_id, int main_render_frame_id,
     AudioMirroringManager* mirroring_manager,
     const scoped_refptr<WebContentsTracker>& tracker,
     media::VirtualAudioInputStream* mixer_stream)
     : impl_(new Impl(render_process_id, main_render_frame_id,
                      mirroring_manager, tracker, mixer_stream)) {}
 
@@ skipping 34 matching lines @@
 
 bool WebContentsAudioInputStream::GetAutomaticGainControl() {
   return impl_->mixer_stream()->GetAutomaticGainControl();
 }
 
 bool WebContentsAudioInputStream::IsMuted() {
   return false;
 }
 
 }  // namespace content