Move CRL set parsing and serialization logic out of CRLSet

Added new CRLSetStorage class that's responsible for parsing and
serializing CRLSet. This will allow compiling CRLSet without dependency
on zlib.

BUG=274652

Review URL: https://codereview.chromium.org/361033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281199 0039d316-1c4b-4281-b951-d872f2087c98
9 files changed