[Extensions] Convert some SyncExtensionFunctions

extensions/browser/api/audio/audio_api.h

Index: extensions/browser/api/audio/audio_api.h
diff --git a/extensions/browser/api/audio/audio_api.h b/extensions/browser/api/audio/audio_api.h
index e1a45347546f28e4f7516a2acdaaee1fc1381dd9..ee4ce3b4044f48998eeb308b16c73bd2d672eb4a 100644
--- a/extensions/browser/api/audio/audio_api.h
+++ b/extensions/browser/api/audio/audio_api.h
@@ -41,31 +41,31 @@ class AudioAPI : public BrowserContextKeyedAPI, public AudioService::Observer {
   AudioService* service_;
 };
 
-class AudioGetInfoFunction : public SyncExtensionFunction {
+class AudioGetInfoFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("audio.getInfo", AUDIO_GETINFO);
 
  protected:
   ~AudioGetInfoFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
-class AudioSetActiveDevicesFunction : public SyncExtensionFunction {
+class AudioSetActiveDevicesFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("audio.setActiveDevices", AUDIO_SETACTIVEDEVICES);
 
  protected:
   ~AudioSetActiveDevicesFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
-class AudioSetPropertiesFunction : public SyncExtensionFunction {
+class AudioSetPropertiesFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("audio.setProperties", AUDIO_SETPROPERTIES);
 
  protected:
   ~AudioSetPropertiesFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
 }  // namespace extensions