Remove comparisons for blob/filesystem schemes in scheme_host_port

These are checked implicitly via the fact that blob schemes are not
standard, and filesystem schemes have type SCHEME_WITHOUT_AUTHORITY.

IsStandard is in critical path of loading many resources, as it is
used for conversions to url::Origin.

BUG=672877

Review-Url: https://codereview.chromium.org/2560923002
Cr-Commit-Position: refs/heads/master@{#442372}
2 files changed