SignChallengeCallback  363 chrome/browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.cc       base::Bind(&EPKPChallengeMachineKey::SignChallengeCallback, this));
SignChallengeCallback  509 chrome/browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.cc       base::Bind(&EPKPChallengeUserKey::SignChallengeCallback, this,
SignChallengeCallback  172 chrome/browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.h   void SignChallengeCallback(bool success, const std::string& response);
SignChallengeCallback  212 chrome/browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.h   void SignChallengeCallback(bool register_key,