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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "content/public/browser/media_devices_monitor.h"
      6 
      7 #include "content/browser/browser_main_loop.h"
      8 #include "content/browser/renderer_host/media/media_stream_manager.h"
      9 #include "content/public/browser/browser_thread.h"
     10 
     11 namespace content {
     12 namespace {
     13 void EnsureMonitorCaptureDevicesInternal(
     14     MediaStreamManager* media_stream_manager) {
     15   media_stream_manager->EnumerateDevices(
     16       NULL, -1, -1, -1, MEDIA_DEVICE_AUDIO_CAPTURE, GURL());
     17 }
     18 }
     19 
     20 void EnsureMonitorCaptureDevices() {
     21   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     22 
     23   BrowserThread::PostTask(
     24       BrowserThread::IO, FROM_HERE,
     25       base::Bind(&EnsureMonitorCaptureDevicesInternal,
     26                  BrowserMainLoop::GetInstance()->media_stream_manager()));
     27 }
     28 
     29 }  // namespace content
     30