move android_native_buffer_t declaration into its own private/ui/android_native_priv.h header, since user code should never have access to it.
diff --git a/libs/ui/FramebufferNativeWindow.cpp b/libs/ui/FramebufferNativeWindow.cpp
index 5e69cff..4e692e2 100644
--- a/libs/ui/FramebufferNativeWindow.cpp
+++ b/libs/ui/FramebufferNativeWindow.cpp
@@ -38,6 +38,8 @@
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
+#include <private/ui/android_natives_priv.h>
+
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------