[mojo-edk] Explicitly serialise HANDLEs into messages instead of PlatformHandles.
This changes HANDLEs on windows to have an explicit serialised form instead of
copying the in-memory PlatformHandle class. This is intended to prevent
accidental leakage of information between processes, and address serialisation
issues such as padding.
BUG=604282
Review-Url: https://codereview.chromium.org/2008953003
Cr-Commit-Position: refs/heads/master@{#396667}
CrOS-Libchrome-Original-Commit: 9a14e9bc319a664d5175a3cd65ea297e06f7391a
6 files changed