ReadMessageAttribute
status_t ReadMessageAttribute(const char* type,
if (fDatabaseLocation->ReadMessageAttribute(type, kFileExtensionsAttr,
status_t result = ReadMessageAttribute(type, kAttrInfoAttr, _info);
status_t result = ReadMessageAttribute(type, kFileExtensionsAttr, _extensions);
status_t result = ReadMessageAttribute(type, kSupportedTypesAttr, _types);
if (fDatabaseLocation->ReadMessageAttribute(appSignature,