[ios] Updates ios DEPS files to mirror desktop DEPS files.

ios/DEPS

Index: ios/DEPS
diff --git a/ios/DEPS b/ios/DEPS
index 8f13cb93e6a372de5bba3198b6fc7593db211499..94f7f2c2f4600ef2533184fee633d6df69e71f28 100644
--- a/ios/DEPS
+++ b/ios/DEPS
@@ -3,11 +3,13 @@ include_rules = [
   # directories in ios/ so we disallow all of them.
   "-ios",
 
-  # To avoid ODR violation, direct import of ios/third_party/ochamcrest
-  # is forbidden in ios/DEPS and code should instead use import as if
-  # OCHamcrest was in a framework (i.e. #import <OCHamcrest/OCHamcrest.h>).
+  # To avoid ODR violation, direct import of these libraries is forbidden in
+  # ios/DEPS and code should instead use import as if they were in a framework
+  # (i.e. #import <OCHamcrest/OCHamcrest.h>).
+  "-ios/third_party/earl_grey",
   "-ios/third_party/ochamcrest",
 
   # For unit tests.
+  "+ios/testing",
   "+third_party/ocmock",
 ]