Move Canvas compatibility settings into Compatibility class

Bug: 155422223
Test: make

Follow on to Ie7172fb93364a1e04ab844b8fa64887bf9d8b005. Remove @hidden
APIs on Canvas - instead call setCompatibilityVersion from the
Compatibility class already in the Java package. This is a step towards
moving Canvas into a mainline module. Note that this means these are set
when the application is bound, rather than when the first View is
created.

Change-Id: I3f73d77ba7351a6cb653dd550210698c6482e1bb