Revert "Revert "Hide SkCanvas getDevice() & getTopDevice()}""

This reverts commit e050ca783297db6d88d4d8d0f466f12020747cb8.

Reason for revert: Chromium change is sticking, revert not needed.

Change-Id: Ic3004460606e4c512f79ba0923746706b960881a
Reviewed-on: https://skia-review.googlesource.com/7021
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Florin Malita <fmalita@google.com>
2 files changed