roll: pigweed, pw_toolchain: pw_chrono: Add VirtualClock

This CL introduces an extension to VirtualSystemClock
which is clock-generic and changes the existing VirtualSystemClock into
a specialization of this new, more generic interface.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/233031

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: dc92fa94360e3b8..f85d4f62a404caa
Roller-URL: https://ci.chromium.org/b/8737786288641548641
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I58e7c8fab1c90d6b7f407cf32f42114c858934d4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/233631
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/MODULE.bazel b/MODULE.bazel
index 7e27e39..96d5428 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -48,8 +48,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-03.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8737786687997598337.
-    commit = "dc92fa94360e3b8c2141aeb67a17892f9a6fe206",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8737786288641548641.
+    commit = "f85d4f62a404caa144d337851815ca21e4dadf54",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
@@ -57,8 +57,8 @@
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-09-03.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8737786687997598337.
-    commit = "dc92fa94360e3b8c2141aeb67a17892f9a6fe206",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8737786288641548641.
+    commit = "f85d4f62a404caa144d337851815ca21e4dadf54",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )