Rename ConfirmAuthToken -> ConfirmClientAuthToken

Change-Id: If7ecdb3cfd168a7054300fd229bd1e8dc534469a
Reviewed-on: https://weave-review.googlesource.com/1965
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
diff --git a/src/privet/auth_manager.h b/src/privet/auth_manager.h
index ce406ce..44b8bca 100644
--- a/src/privet/auth_manager.h
+++ b/src/privet/auth_manager.h
@@ -46,7 +46,8 @@
 
   std::vector<uint8_t> ClaimRootClientAuthToken(RootClientTokenOwner owner,
                                                 ErrorPtr* error);
-  bool ConfirmAuthToken(const std::vector<uint8_t>& token, ErrorPtr* error);
+  bool ConfirmClientAuthToken(const std::vector<uint8_t>& token,
+                              ErrorPtr* error);
 
   std::vector<uint8_t> GetRootClientAuthToken() const;
   bool IsValidAuthToken(const std::vector<uint8_t>& token) const;