Plumb audio focus support for spitzer clients.

content/renderer/media/audio_renderer_mixer_manager.h

Index: content/renderer/media/audio_renderer_mixer_manager.h
diff --git a/content/renderer/media/audio_renderer_mixer_manager.h b/content/renderer/media/audio_renderer_mixer_manager.h
index fa8f96208577feecae438ab9525343cd04b17e9e..f8a7b74a6e4f6c8ecf991e79ac92ce813b822856 100644
--- a/content/renderer/media/audio_renderer_mixer_manager.h
+++ b/content/renderer/media/audio_renderer_mixer_manager.h
@@ -94,10 +94,12 @@ class CONTENT_EXPORT AudioRendererMixerManager {
         return a.source_render_frame_id < b.source_render_frame_id;
       if (a.params.channels() != b.params.channels())
         return a.params.channels() < b.params.channels();
+      if (a.params.effects() != b.params.effects())
+        return a.params.effects() < b.params.effects();
 
-      // Ignore effects(), bits_per_sample(), format(), and frames_per_buffer(),
-      // these parameters do not affect mixer reuse.  All AudioRendererMixer
-      // units disable FIFO, so frames_per_buffer() can be safely ignored.
+      // Ignore bits_per_sample(), format(), and frames_per_buffer(), these
+      // parameters do not affect mixer reuse.  All AudioRendererMixer units
+      // disable FIFO, so frames_per_buffer() can be safely ignored.
       if (a.params.channel_layout() != b.params.channel_layout())
         return a.params.channel_layout() < b.params.channel_layout();