Mojo interfaces needed for switching audio rendering stream creation and closing from IPC to Mojo

media/audio/audio_output_controller.h

Index: media/audio/audio_output_controller.h
diff --git a/media/audio/audio_output_controller.h b/media/audio/audio_output_controller.h
index 58e1e458a97e1ec06b5157706a62940919b7d2cc..394e11fed19b17005b76ade4538efbf908f6a8f4 100644
--- a/media/audio/audio_output_controller.h
+++ b/media/audio/audio_output_controller.h
@@ -20,6 +20,7 @@
 #include "media/audio/audio_source_diverter.h"
 #include "media/audio/simple_sources.h"
 #include "media/base/media_export.h"
+#include "media/mojo/interfaces/audio_output.mojom.h"
 
 // An AudioOutputController controls an AudioOutputStream and provides data
 // to this output stream. It has an important function that it executes
@@ -67,7 +68,8 @@ class MEDIA_EXPORT AudioOutputController
   // following methods are called on the audio manager thread.
   class MEDIA_EXPORT EventHandler {
    public:
-    virtual void OnCreated() = 0;
+    virtual void OnCreated(
+        const content::mojom::AudioOutput::CreateStreamCallback& callback) = 0;
     virtual void OnPlaying() = 0;
     virtual void OnPaused() = 0;
     virtual void OnError() = 0;
@@ -109,9 +111,12 @@ class MEDIA_EXPORT AudioOutputController
   // The |output_device_id| can be either empty (default device) or specify a
   // specific hardware device for audio output.
   static scoped_refptr<AudioOutputController> Create(
-      AudioManager* audio_manager, EventHandler* event_handler,
-      const AudioParameters& params, const std::string& output_device_id,
-      SyncReader* sync_reader);
+      AudioManager* audio_manager,
+      EventHandler* event_handler,
+      const AudioParameters& params,
+      const std::string& output_device_id,
+      SyncReader* sync_reader,
+      const content::mojom::AudioOutput::CreateStreamCallback& callback);
 
   // Indicates whether audio power level analysis will be performed.  If false,
   // ReadCurrentPowerAndClip() can not be called.
@@ -206,7 +211,9 @@ class MEDIA_EXPORT AudioOutputController
                         SyncReader* sync_reader);
 
   // The following methods are executed on the audio manager thread.
-  void DoCreate(bool is_for_device_change);
+  void DoCreate(
+      bool is_for_device_change,
+      const content::mojom::AudioOutput::CreateStreamCallback& callback);
   void DoPlay();
   void DoPause();
   void DoClose();