Update CertVerifier::Verify to use RequestParams instead

CertVerifier::Verify() has some inconsistencies with
respect to how it handles additional trust anchors, which
complicates the layering and the caching.

Rather than just add an additional parameter to Verify(),
convert everything to use RequestParams, which also defines how
the caching/hashing is done.

BUG=612655
TBR=brettw

Review-Url: https://codereview.chromium.org/1994353002
Cr-Commit-Position: refs/heads/master@{#398707}
25 files changed