Added drawAtlas support to SkDebugCanvas

No serialization yet (like drawVertices, etc...), but should support
capture and playback.

Change-Id: I7b54cc95fb828471a8faa6abd4eaca0ad0d2cb70
Reviewed-on: https://skia-review.googlesource.com/130503
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
4 files changed