Merge M54: "Break out WebAudio suspension code into new class. Add tests."

media/base/fake_audio_render_callback.h

Index: media/base/fake_audio_render_callback.h
diff --git a/media/base/fake_audio_render_callback.h b/media/base/fake_audio_render_callback.h
index 0c5aae5701ed522ac9d90a358afe8e79b3718eb6..aad6044bcd337c797885cebe29ed3699708375c6 100644
--- a/media/base/fake_audio_render_callback.h
+++ b/media/base/fake_audio_render_callback.h
@@ -53,6 +53,10 @@ class FakeAudioRenderCallback
   int last_channel_count() const { return last_channel_count_; }
 
  private:
+  int RenderInternal(AudioBus* audio_bus,
+                     uint32_t frames_delayed,
+                     double volume);
+
   bool half_fill_;
   double x_;
   double step_;