Remove exclusion for non-standard schemes when sending origins during commit.
Remove exclusion for non-standard schemes when sending origins during commit.

This can be removed now that url::Origin is more robust when dealing
with non-standard schemes (e.g., content://foo/bar).  Note that
url::Origin will still treat this origin as unique, so there's no
behavior change.  We would need to update url::Origin to preserve the
scheme if we want such origins preserved when replicating to remote
frames.

BUG=426512, 439608

Review URL: https://codereview.chromium.org/1807673007

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#382041}

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