Wyatt Allen 7c66d99a1c Respect the diff preference for syntax highlighting
Adds checkboxes to both diff preferences controls, adds an `enabled`
boolean property to the `gr-syntax-layer` element, and updates all
relevant tests.

Bug: Issue 4297
Change-Id: I10cef760c354c53e03acfb3c84379e82859ef25f
2016-07-27 11:14:54 -07:00
..
2016-07-25 13:47:30 -07:00