Revert of 🎊 Have build_config targets depend only on other build_config targets

build/android/gyp/write_build_config.py

Index: build/android/gyp/write_build_config.py
diff --git a/build/android/gyp/write_build_config.py b/build/android/gyp/write_build_config.py
index 69acb2bb8a437911f524fcf0f98d42874774399c..6845dabdb35a966ad78755e45a2b45211583db12 100755
--- a/build/android/gyp/write_build_config.py
+++ b/build/android/gyp/write_build_config.py
@@ -200,8 +200,10 @@
       '--type',
       help='Type of this target (e.g. android_library).')
   parser.add_option(
-      '--deps-configs',
-      help='List of paths for dependency\'s build_config files. ')
+      '--possible-deps-configs',
+      help='List of paths for dependency\'s build_config files. Some '
+      'dependencies may not write build_config files. Missing build_config '
+      'files are handled differently based on the type of this target.')
 
   # android_resources options
   parser.add_option('--srcjar', help='Path to target\'s resources srcjar.')
@@ -288,7 +290,14 @@
       raise Exception(
           '--supports-android is required when using --requires-android')
 
-  direct_deps_config_paths = build_utils.ParseGypList(options.deps_configs)
+  possible_deps_config_paths = build_utils.ParseGypList(
+      options.possible_deps_configs)
+
+  unknown_deps = [
+      c for c in possible_deps_config_paths if not os.path.exists(c)]
+
+  direct_deps_config_paths = [
+      c for c in possible_deps_config_paths if not c in unknown_deps]
   direct_deps_config_paths = _FilterUnwantedDepsPaths(direct_deps_config_paths,
                                                       options.type)