libpod/container: Replace containerState* with containerPlatformState

This way we don't need to stub in structures for other OSes (e.g. the
Darwin stub in a Linux-only file).  Matthew was concerned about errors
unmarshalling, say, a Linux state object on a Windows box [1], but we
can address that in checks when loading the database [2].

[1]: https://github.com/projectatomic/libpod/pull/1015#discussion_r198649043
[2]: https://github.com/projectatomic/libpod/pull/1015#discussion_r198802956

Signed-off-by: W. Trevor King <wking@tremily.us>

Closes: #1033
Approved by: mheon

1 files changed, 5 insertions, 0 deletions

diff --git a/libpod/container_unsupported.go b/libpod/container_unsupported.go
new file mode 100644
index 000000000..e214b9465
--- /dev/null
+++ b/libpod/container_unsupported.go
@@ -0,0 +1,5 @@
+// +build !linux
+
+package libpod
+
+type containerPlatformState struct{}