Pre-emptive fix for new protobuf version.
Pre-emptive fix for new protobuf version.

Xlib.h #defines "Status", which then breaks .pb.h files.

BUG=none
TEST=none
TBR=wez

Review URL: https://codereview.chromium.org/1298753002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#343744}

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