Roll Perfetto from 1bc544600f89 to 12a163a82a6a (3 revisions)

https://chromium.googlesource.com/external/github.com/google/perfetto.git/+log/1bc544600f89..12a163a82a6a

2025-07-25 lalitm@google.com tp: switch args hashing and string pool hashing to MurmurHash (#2300)
2025-07-25 lalitm@google.com tp: use MurmurHash for base::FlatHashMap behind a flag (#2290)
2025-07-25 lalitm@google.com base: prepare murmurhash to actually be ready to use (#2303)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/perfetto-chromium-autoroll
Please CC etiennep@google.com,perfetto-bugs@google.com,primiano@chromium.org on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:linux-perfetto-rel
Bug: None
Tbr: etiennep@google.com,perfetto-bugs@google.com
Change-Id: I448739ae3798b2d7b58ae713c4aee077471a58a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6785817
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1491956}