Updates for zerocopy 0.8. am: 4a6d96c168

Original change: https://android-review.googlesource.com/c/platform/system/libfmq/+/3380383

Change-Id: Ie4c4b089b8440d72709e53178a57a62b843504d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Android.bp

diff --git a/Android.bp b/Android.bp
index f1b881c..447f977 100644
--- a/Android.bp
+++ b/Android.bp
@@ -199,7 +199,7 @@
     rustlibs: [
         "libfmq_bindgen",
         "liblog_rust",
-        "libzerocopy-0.7.35",
+        "libzerocopy",
     ],
     proc_macros: [],
 }

libfmq.rs

diff --git a/libfmq.rs b/libfmq.rs
index 47c5c15..55a3419 100644
--- a/libfmq.rs
+++ b/libfmq.rs
@@ -22,11 +22,11 @@
     ndk_ScopedFileDescriptor, ErasedMessageQueue, ErasedMessageQueueDesc, GrantorDescriptor,
     MQDescriptor, MemTransaction, NativeHandle, ParcelFileDescriptor, SynchronizedReadWrite,
 };
+use log::error;
+use zerocopy::{FromBytes, Immutable, IntoBytes};
 
 use std::ptr::addr_of_mut;
 
-use log::error;
-
 /// A trait indicating that a type is safe to pass through shared memory.
 ///
 /// # Safety
@@ -40,8 +40,10 @@
 /// the same process. As such, `Share` is a supertrait of `Sync`.
 pub unsafe trait Share: Sync {}
 
-// SAFETY: All types implementing the `zerocopy::AsBytes` trait implement `Share`.
-unsafe impl<T: zerocopy::AsBytes + zerocopy::FromBytes + Send + Sync> Share for T {}
+// SAFETY: All types implementing the zerocopy `Immutable`, `IntoBytes` and `FromBytes` traits
+// implement `Share`, because that implies that they don't have any interior mutability and can be
+// treated as just a slice of bytes.
+unsafe impl<T: Immutable + IntoBytes + FromBytes + Send + Sync> Share for T {}
 
 /// An IPC message queue for values of type T.
 pub struct MessageQueue<T> {