[DevTools] Refactor tethering to allow for minimal changes when moving to generated handler

content/browser/devtools/tethering_handler.h

Index: content/browser/devtools/tethering_handler.h
diff --git a/content/browser/devtools/tethering_handler.h b/content/browser/devtools/tethering_handler.h
index b48b2af9e438847e708407395c5b4d0a5fe29d9f..e34613fa4ac167797ad8026ad9705691f07ac941 100644
--- a/content/browser/devtools/tethering_handler.h
+++ b/content/browser/devtools/tethering_handler.h
@@ -33,6 +33,11 @@ class TetheringHandler : public DevToolsProtocol::Handler {
   scoped_refptr<DevToolsProtocol::Response> OnUnbind(
       scoped_refptr<DevToolsProtocol::Command>  command);
 
+  void SendBindSuccess(scoped_refptr<DevToolsProtocol::Command> command);
+  void SendUnbindSuccess(scoped_refptr<DevToolsProtocol::Command> command);
+  void SendInternalError(scoped_refptr<DevToolsProtocol::Command> command,
+                         const std::string& message);
+
   DevToolsHttpHandlerDelegate* delegate_;
   scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
   bool is_active_;