Implement IPC::ParamTraits<mojo::MessagePipeHandle>
This allows MessagePipeHandle to be an IPC message member.
Note that this assumes underlying channel being a ChannelMojo
and can be used in content/ only after ChannelMojo settles.
BUG=448190
TEST=IPCChannelMojoTest.ParamTrait*
R=viettrungluu@chromium.org
Committed: https://crrev.com/5656ae68841a3e3ddaac75cf2983d9052d71d0d5
Cr-Commit-Position: refs/heads/master@{#323265}
Review URL: https://codereview.chromium.org/1051443003
Cr-Commit-Position: refs/heads/master@{#323370}
CrOS-Libchrome-Original-Commit: 2b85d21119ce534940ccd2ff57727cd4b428081c
3 files changed