Roll Code Coverage from bfffc566bf0a to 306c68de9c9b (2 revisions)

https://chromium.googlesource.com/chromium/src/tools/code_coverage.git/+log/bfffc566bf0a..306c68de9c9b

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/code-coverage-pdfium
Please CC dhoss@chromium.org,pdfium-reviews+autoroller@googlegroups.com,thestig@chromium.org on the revert to ensure that a human
is aware of the problem.

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

Bug: None
Tbr: pdfium-reviews+autoroller@googlegroups.com
Change-Id: I03a71ce34ba711894d6793de085af99cebf1dc9a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/120891
Commit-Queue: pdfium-autoroll <pdfium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: pdfium-autoroll <pdfium-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 0a6a60d..22de895 100644
--- a/DEPS
+++ b/DEPS
@@ -92,7 +92,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling code_coverage
   # and whatever else without interference from each other.
-  'code_coverage_revision': 'bfffc566bf0a01b36a8c9e02d55c8f40fd3c823d',
+  'code_coverage_revision': '306c68de9c9b96e4199f4af019715fcdcc1a8d09',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling code_coverage
   # and whatever else without interference from each other.