Fix FieldTrialListTest.SerializeSharedMemoryRegionMetadata

The test was failing on Windows when run without admin rights. The problem was
that a shared memory handle wasn't shared with a child process correctly.

This CL fixes the problem by registering a handle in the
LaunchOptions::handles_to_inherit struct.

Bug: 937936
Test: worked locally when run without admin rights
Change-Id: I1d81fc661c19cf97f2c44d0e8c6b655430828421
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1517592
Auto-Submit: Alex Ilin <alexilin@chromium.org>
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639916}
1 file changed