GCC: avoid ambiguous NoDestructor creation in GetNeverSniffedMimeTypes.

Use brace-list notation to wrap the already existing brace-list for
initializing the flat-set. This resolves an ambiguous instantiation
in GCC.

Bug: 819294
Change-Id: I89ddf12522d62a5140a8c2c41dc98e30ec7a0e78
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1645774
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: José Dapena Paz <jose.dapena@lge.com>
Cr-Commit-Position: refs/heads/master@{#666401}
1 file changed