Split out audio debug recording from RenderProcessHostImpl.

content/browser/renderer_host/media/audio_input_renderer_host.h

Index: content/browser/renderer_host/media/audio_input_renderer_host.h
diff --git a/content/browser/renderer_host/media/audio_input_renderer_host.h b/content/browser/renderer_host/media/audio_input_renderer_host.h
index dd5499654463378993e4851eda541997e428fc48..e4ba207273f92ea606833a96a35a148fe02cb7e1 100644
--- a/content/browser/renderer_host/media/audio_input_renderer_host.h
+++ b/content/browser/renderer_host/media/audio_input_renderer_host.h
@@ -112,8 +112,8 @@ class CONTENT_EXPORT AudioInputRendererHost
 
 #if defined(ENABLE_WEBRTC)
   // Enable and disable debug recording of input on all audio entries.
-  void EnableDebugRecording(const base::FilePath& file);
-  void DisableDebugRecording();
+  virtual void EnableDebugRecording(const base::FilePath& file);
+  virtual void DisableDebugRecording();
 #endif
 
   // BrowserMessageFilter implementation.
@@ -135,6 +135,9 @@ class CONTENT_EXPORT AudioInputRendererHost
   // filename.
   void set_renderer_pid(int32_t renderer_pid);
 
+ protected:
+  ~AudioInputRendererHost() override;
+
  private:
   // TODO(henrika): extend test suite (compare AudioRenderHost)
   friend class BrowserThread;
@@ -144,8 +147,6 @@ class CONTENT_EXPORT AudioInputRendererHost
   struct AudioEntry;
   typedef std::map<int, AudioEntry*> AudioEntryMap;
 
-  ~AudioInputRendererHost() override;
-
   // Methods called on IO thread ----------------------------------------------
 
   // Audio related IPC message handlers.