Introduce AudioIPCFactory.

content/renderer/pepper/pepper_platform_audio_output_dev.h

 // Copyright (c) 2017 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 CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_DEV_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_DEV_H_
 
 #include <memory>
+#include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "media/audio/audio_output_ipc.h"
 #include "media/base/audio_parameters.h"
 #include "media/base/output_device_info.h"
 
 namespace base {
 class OneShotTimer;
 class SingleThreadTaskRunner;
 }
 
-namespace {
-#if defined(OS_WIN) || defined(OS_MACOSX)
-const int64_t kMaxAuthorizationTimeoutMs = 4000;
-#else
-const int64_t kMaxAuthorizationTimeoutMs = 0;  // No timeout.
-#endif
-}
-
 namespace content {
 class PepperAudioOutputHost;
 
 // This class is used to support new PPAPI |PPB_AudioOutput_Dev|, while
 // |PepperPlatformAudioOutput| is to support old PPAPI |PPB_Audio|.
 class PepperPlatformAudioOutputDev
     : public media::AudioOutputIPCDelegate,
       public base::RefCountedThreadSafe<PepperPlatformAudioOutputDev> {
  public:
   // Factory function, returns NULL on failure. StreamCreated() will be called
@@ skipping 114 matching lines @@
 
   const base::TimeDelta auth_timeout_;
   std::unique_ptr<base::OneShotTimer> auth_timeout_action_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPlatformAudioOutputDev);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_OUTPUT_DEV_H_