Use SkFont in getOrCreateCache for RemoteGlyphCache

Change-Id: I784e85cb154be077a1ca1949d7806ac95269d8c8
Reviewed-on: https://skia-review.googlesource.com/c/178281
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>
6 files changed