Simplify logic behind chrome.audio.setActiveDevices

extensions/browser/api/audio/audio_service.h

Index: extensions/browser/api/audio/audio_service.h
diff --git a/extensions/browser/api/audio/audio_service.h b/extensions/browser/api/audio/audio_service.h
index e733f7afd399dc7240e4cb8d373193667205b25a..449c24031a0069e921189473ad75612bcdceefab 100644
--- a/extensions/browser/api/audio/audio_service.h
+++ b/extensions/browser/api/audio/audio_service.h
@@ -5,6 +5,7 @@
 #ifndef EXTENSIONS_BROWSER_API_AUDIO_AUDIO_SERVICE_H_
 #define EXTENSIONS_BROWSER_API_AUDIO_AUDIO_SERVICE_H_
 
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -55,6 +56,10 @@ class AudioService {
   virtual bool GetInfo(OutputInfo* output_info_out,
                        InputInfo* input_info_out) = 0;
 
+  virtual bool SetActiveDeviceLists(
+      const std::unique_ptr<DeviceIdList>& input_devices,
+      const std::unique_ptr<DeviceIdList>& output_devives) = 0;

[jennyz, 2017/01/07 00:33:00]

Please add some comments about the new function.

[tbarzic, 2017/01/07 05:16:31]

Done.

+
   // Sets the active devices to the devices specified by |device_list|.
   // It can pass in the "complete" active device list of either input
   // devices, or output devices, or both. If only input devices are passed in,