Replace forward_dependent_configs with public_deps

tools/generate_library_loader/generate_library_loader.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This template makes a stub for a Linux system library that dynamically loads
 # it at runtime.
 
 # name: Name to use for the value of the --name arg.
 # output_h/output_cc: Names for the generated header/cc file with no dir.
 # header: header file to process. Example: "<foo/bar.h>"
@@ skipping 28 matching lines @@
       "--link-directly=0",
     ]
     if (defined(invoker.bundled_header)) {
       args += [ "--bundled-header", invoker.bundled_header ]
     }
     args += invoker.functions
   }
 
   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" ]
   }
 }