Update HOST_OS guard names (#8)
diff --git a/root_certificates.cc b/root_certificates.cc
index afebe71..4e8c5e2 100644
--- a/root_certificates.cc
+++ b/root_certificates.cc
@@ -9,7 +9,7 @@
#if !defined(DART_IO_DISABLED) && !defined(DART_IO_SECURE_SOCKET_DISABLED)
#include "platform/globals.h"
-#if !defined(HOST_OS_MACOS) && !defined(HOST_OS_ANDROID)
+#if !defined(DART_HOST_OS_MACOS) && !defined(DART_HOST_OS_ANDROID)
namespace dart {
namespace bin {
@@ -17863,7 +17863,7 @@
} // namespace bin
} // namespace dart
-#endif // !defined(HOST_OS_MACOS) && !defined(HOST_OS_ANDROID)
+#endif // !defined(DART_HOST_OS_MACOS) && !defined(DART_HOST_OS_ANDROID)
#endif // !defined(DART_IO_DISABLED) &&
// !defined(DART_IO_SECURE_SOCKET_DISABLED)