Merge to XFA: Tighten up DEPS include rules.

Original Review URL: https://codereview.chromium.org/1233583004 .
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1234923006 .
diff --git a/DEPS b/DEPS
index dbbc207..6387890 100644
--- a/DEPS
+++ b/DEPS
@@ -29,11 +29,10 @@
 }
 
 include_rules = [
-  '+core/include',
-  '+fpdfsdk/include',
   '+public',
   '+testing',
   '+third_party/base',
+  '+v8',
 ]
 
 hooks = [