Align trace event allocations to avoid alignment issues on 32-bit ARM

Bug: skia:8463
Change-Id: Ic30f36e2a7cc2b96c307fd9ce8454fddce655115
Reviewed-on: https://skia-review.googlesource.com/c/164692
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed