Vendor dependencies for 0.3.0 release

vendor/accesskit_winit/src/platform_impl/mod.rs

@@ -0,0 +1,50 @@
+// Copyright 2022 The AccessKit Authors. All rights reserved.
+// Licensed under the Apache License, Version 2.0 (found in
+// the LICENSE-APACHE file).
+
+// Based loosely on winit's src/platform_impl/mod.rs.
+
+pub use self::platform::*;
+
+#[cfg(target_os = "windows")]
+#[path = "windows.rs"]
+mod platform;
+
+#[cfg(target_os = "macos")]
+#[path = "macos.rs"]
+mod platform;
+
+#[cfg(all(
+    feature = "accesskit_unix",
+    any(
+        target_os = "linux",
+        target_os = "dragonfly",
+        target_os = "freebsd",
+        target_os = "netbsd",
+        target_os = "openbsd"
+    )
+))]
+#[path = "unix.rs"]
+mod platform;
+
+#[cfg(all(feature = "accesskit_android", target_os = "android"))]
+#[path = "android.rs"]
+mod platform;
+
+#[cfg(not(any(
+    target_os = "windows",
+    target_os = "macos",
+    all(
+        feature = "accesskit_unix",
+        any(
+            target_os = "linux",
+            target_os = "dragonfly",
+            target_os = "freebsd",
+            target_os = "netbsd",
+            target_os = "openbsd"
+        )
+    ),
+    all(feature = "accesskit_android", target_os = "android")
+)))]
+#[path = "null.rs"]
+mod platform;