Replace forward_dependent_configs with public_deps

This is the new name. It has the same meaning but additionally with a "you can use the headers" permission.

Rename direct_dependent_configs to public_configs. This is the new name with identical meaning.

TBR=jamesr

Review URL: https://codereview.chromium.org/595073002

Cr-Original-Commit-Position: refs/heads/master@{#296302}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e5389527466d390b5653724a069008b9f1edcd5c
diff --git a/generate_library_loader.gni b/generate_library_loader.gni
index e38beae..debeddd 100644
--- a/generate_library_loader.gni
+++ b/generate_library_loader.gni
@@ -46,7 +46,7 @@
 
   source_set(target_name) {
     if (defined(invoker.config)) {
-      direct_dependent_configs = [ invoker.config ]
+      public_configs = [ invoker.config ]
     }
     sources = [ output_h, output_cc ]
     deps = [ ":${target_name}_loader" ]