use `SharedMemory::{named, anon}` to replace `::new`

The new constructors are shorter and omit the bare `None` in the `anon`
call sites which gave no clues to the reader what the effect of that
`None` was. This should improve readability.

TEST=./build_test
BUG=None

Change-Id: I2e34e7df9a4ccc5da50edf4e963a6a42e3d84b22
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1797188
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/qcow/src/qcow.rs b/qcow/src/qcow.rs
index 3153df1..aaff5f1 100644
--- a/qcow/src/qcow.rs
+++ b/qcow/src/qcow.rs
@@ -1646,7 +1646,7 @@ mod tests {
     where
         F: FnMut(File),
     {
-        let shm = SharedMemory::new(None).unwrap();
+        let shm = SharedMemory::anon().unwrap();
         let mut disk_file: File = shm.into();
         disk_file.write_all(&header).unwrap();
         disk_file.set_len(0x1_0000_0000).unwrap();
@@ -1659,7 +1659,7 @@ mod tests {
     where
         F: FnMut(QcowFile),
     {
-        let shm = SharedMemory::new(None).unwrap();
+        let shm = SharedMemory::anon().unwrap();
         let qcow_file = QcowFile::new(shm.into(), file_size).unwrap();
 
         testfn(qcow_file); // File closed when the function exits.
@@ -1668,7 +1668,7 @@ mod tests {
     #[test]
     fn default_header() {
         let header = QcowHeader::create_for_size(0x10_0000);
-        let shm = SharedMemory::new(None).unwrap();
+        let shm = SharedMemory::anon().unwrap();
         let mut disk_file: File = shm.into();
         header
             .write_to(&mut disk_file)