Update from https://crrev.com/311076

Includes updating DCHECK_IS_ON to a function-style macro and removing
various dead skia-overriding code from Sky.

Review URL: https://codereview.chromium.org/851503003
diff --git a/gin/DEPS b/gin/DEPS
index 4e3f30a..d4cc2ba 100644
--- a/gin/DEPS
+++ b/gin/DEPS
@@ -1,4 +1,5 @@
 include_rules = [
   "+base",
+  "+crypto",
   "+v8",
 ]