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This makes a handful of small changes to align the two implementations:

- Remove Net.SSLv3FallbackToRenegoPatchedServer. It's no longer necessary. In
  fact, the majority of SSLv3 fallbacks are to servers that /are/ renego patched.

- Gather Net.SSLCertVerificationTime* on OpenSSL.

- Move histogram calls on OpenSSL out of GetSSLInfo as that is not called once
  per handshake. Net.RenegotiationExtensionSupported is moved to common code and
  RecordChannelIDSupport to the handshake success codepath.

Net.OCSPResponseStapled is left ungathered as BoringSSL does not yet support
OCSP stapling.

BUG=405631

Review URL: https://codereview.chromium.org/493793003

Cr-Commit-Position: refs/heads/master@{#291752}