Enable passing cast channel certificate authority keys.

extensions/browser/api/cast_channel/cast_channel_api.h

Index: extensions/browser/api/cast_channel/cast_channel_api.h
diff --git a/extensions/browser/api/cast_channel/cast_channel_api.h b/extensions/browser/api/cast_channel/cast_channel_api.h
index d875e4f3b080223822494c2e3ece919735fb45dc..ebaf41867c7461caa50fc4d44f6b4d9916e30014 100644
--- a/extensions/browser/api/cast_channel/cast_channel_api.h
+++ b/extensions/browser/api/cast_channel/cast_channel_api.h
@@ -232,13 +232,31 @@ class CastChannelGetLogsFunction : public CastChannelAsyncApiFunction {
  private:
   DECLARE_EXTENSION_FUNCTION("cast.channel.getLogs", CAST_CHANNEL_GETLOGS)
 
-  void OnClose(int result);
-
   CastChannelAPI* api_;
 
   DISALLOW_COPY_AND_ASSIGN(CastChannelGetLogsFunction);
 };
 
+class CastChannelSetAuthorityKeysFunction : public CastChannelAsyncApiFunction {
+ public:
+  CastChannelSetAuthorityKeysFunction();
+
+ protected:
+  virtual ~CastChannelSetAuthorityKeysFunction();
+
+  // AsyncApiFunction:
+  virtual bool Prepare() override;
+  virtual void AsyncWorkStart() override;
+
+ private:
+  DECLARE_EXTENSION_FUNCTION("cast.channel.setAuthorityKeys",
+                             CAST_CHANNEL_SETAUTHORITYKEYS)
+
+  scoped_ptr<cast_channel::SetAuthorityKeys::Params> params_;
+
+  DISALLOW_COPY_AND_ASSIGN(CastChannelSetAuthorityKeysFunction);
+};
+
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_CHANNEL_API_H_