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.cc b/src/privet/auth_manager.cc
index f9f6777..62a640f 100644
--- a/src/privet/auth_manager.cc
+++ b/src/privet/auth_manager.cc
@@ -171,8 +171,8 @@
   return pending_claims_.back().first->GetRootClientAuthToken();
 }
 
-bool AuthManager::ConfirmAuthToken(const std::vector<uint8_t>& token,
-                                   ErrorPtr* error) {
+bool AuthManager::ConfirmClientAuthToken(const std::vector<uint8_t>& token,
+                                         ErrorPtr* error) {
   // Cover case when caller sent confirm twice.
   if (pending_claims_.empty() && IsValidAuthToken(token))
     return true;