Initialize camelCase splitting regexes statically. https://chromium-review.googlesource.com/c/chromium/src/+/6275290 improved the regexes for splitting strings on camel-case, but it also made them heavier. This CL changes the code, so they are initialized statically, and thus parsed once and not on every string tokenization. Bug: 397535331, 397151724 Change-Id: Iec6df2d2c29dab97ccd4e791abe6bbf4d6990744 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6281688 Reviewed-by: Dominic Battré <battre@chromium.org> Commit-Queue: Dominic Battré <battre@chromium.org> Cr-Commit-Position: refs/heads/main@{#1421999}
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