GN WebView: make system_webview_apk work

build/config/android/rules.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.
 
 import("//base/android/linker/config.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//build/toolchain/toolchain.gni")
 import("//third_party/android_platform/config.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 1367 matching lines @@
     }
 
     native_libs = _native_libs
   }
 
   _final_deps = []
 
   _generated_proguard_config = "$base_path.resources.proguard.txt"
   process_resources_target = "${_template_name}__process_resources"
   process_resources(process_resources_target) {
-    forward_variables_from(invoker, [ "include_all_resources" ])
+    forward_variables_from(invoker,
+                           [
+                             "include_all_resources",
+                             "shared_resources",
+                           ])
     srcjar_path = "${target_gen_dir}/${target_name}.srcjar"
     r_text_path = "${target_gen_dir}/${target_name}_R.txt"
     android_manifest = _android_manifest
     resource_dirs = [ "//build/android/ant/empty/res" ]
     zip_path = resources_zip_path
     all_resources_zip_path = _all_resources_zip_path
     generate_constant_ids = true
     proguard_file = _generated_proguard_config
 
     build_config = _build_config
@@ skipping 211 matching lines @@
 
   _final_deps += [ ":${_template_name}__create" ]
   create_apk("${_template_name}__create") {
     deps = []
     forward_variables_from(invoker,
                            [
                              "asset_location",
                              "deps",
                              "extensions_to_not_compress",
                              "language_splits",
+                             "shared_resources",
                            ])
     apk_path = _final_apk_path
     android_manifest = _android_manifest
     assets_build_config = _build_config
     resources_zip = _all_resources_zip_path
     dex_path = final_dex_path
     load_library_from_apk = _load_library_from_apk
     create_density_splits = _create_density_splits
 
     if (!defined(extensions_to_not_compress)) {
@@ skipping 520 matching lines @@
   }
 
   android_library(target_name) {
     java_files = []
     srcjar_deps = [ ":${_template_name}__protoc_java" ]
     deps = [
       "//third_party/android_protobuf:protobuf_nano_javalib",
     ]
   }
 }