This CL implements a const iterator to allow for iteration over a const
AnnotationList. This way, the annotation list can passed as a const
reference in search only situations.
Change-Id: I53bd7871f3d914e7e7e627b6b464aa7fa79597f4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4984053
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Andre Kempe <andre.kempe@arm.com>