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This causes trichrome's dex to be compile with "speed" rather than
"speed-profile", which is a substantial binary size regression.

Also adds a histogram to track when the work-around happens.

Bug: 1152970, 1159608
Change-Id: I25e2c350b54724613234b23505078f5df88d9cf4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2602657
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Clark DuVall <cduvall@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840328}