66     const brillo::Blob& payload, ErrorCode* error) {  in ParsePayloadHeader()
75     *error = ErrorCode::kDownloadInvalidMetadataMagicString;  in ParsePayloadHeader()
92     *error = ErrorCode::kUnsupportedMajorPayloadVersion;  in ParsePayloadHeader()
98     *error = ErrorCode::kUnsupportedMajorPayloadVersion;  in ParsePayloadHeader()
116     *error = ErrorCode::kDownloadInvalidMetadataSize;  in ParsePayloadHeader()
127       *error = ErrorCode::kError;  in ParsePayloadHeader()
137       *error = ErrorCode::kDownloadInvalidMetadataSize;  in ParsePayloadHeader()
145   ErrorCode error;  in ParsePayloadHeader()
159 ErrorCode PayloadMetadata::ValidateMetadataSignature(  in ValidateMetadataSignature()
164     return ErrorCode::kDownloadMetadataSignatureError;  in ValidateMetadataSignature()
177       return ErrorCode::kDownloadMetadataSignatureError;  in ValidateMetadataSignature()
188     return ErrorCode::kDownloadMetadataSignatureMissingError;  in ValidateMetadataSignature()
195     return ErrorCode::kDownloadMetadataSignatureVerificationError;  in ValidateMetadataSignature()
201     return ErrorCode::kDownloadMetadataSignatureVerificationError;  in ValidateMetadataSignature()
209       return ErrorCode::kDownloadMetadataSignatureError;  in ValidateMetadataSignature()
217       return ErrorCode::kDownloadMetadataSignatureVerificationError;  in ValidateMetadataSignature()
225       return ErrorCode::kDownloadMetadataSignatureMismatch;  in ValidateMetadataSignature()
231       return ErrorCode::kDownloadMetadataSignatureMismatch;  in ValidateMetadataSignature()
238   return ErrorCode::kSuccess;  in ValidateMetadataSignature()