am c2f813a3: Merge "Grey out undo/redo/reset according to state" into gb-ub-photos-bryce

* commit 'c2f813a36711742af3b23743ef1849cec13a9a95':
  Grey out undo/redo/reset according to state
tree: c040d6bd523b455b4830453de92b325aedefdb63
  1. gallerycommon/
  2. jni_mosaic/
  3. src/
  4. src_pd/
  5. tests/
  6. tests_camera/