Deprecate Canvas.EdgeType

Bug: 129694386
Test: No change in behavior, no new tests

EdgeType is only used as a parameter to quickReject, but it is always
ignored. Deprecate it and the existing quickReject methods. Add new
versions of quickReject without EdgeType parameters. Switch clients to
the new versions.

Change-Id: Id932f10915a8c4959fe0e85f507ce7fd2da8a576