Reland: Actually use --extra-r-text-files in process_resources.py

build/android/tests/bad_resources/BUILD.gn

+# Copyright 2015 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("//build/config/android/rules.gni")
+
+# GYP: //build/android/tests/bad_resources.gypi:bad_resources_test_apk
+android_resources("app_resources") {
+  resource_dirs = [ "app/res" ]
+  android_manifest = "app/java/AndroidManifest.xml"
+}
+android_resources("dep_resources") {
+  resource_dirs = [ "dep/java/res" ]
+  custom_package = "dummy.dep"
+}
+android_resources("empty_dep_resources") {
+  resource_dirs = [ "empty_dep/java/res" ]
+  custom_package = "dummy.emptydep"
+}
+android_apk("bad_resources_test_apk") {
+  android_manifest = "app/java/AndroidManifest.xml"
+  apk_name = "BadResources"
+  java_files = [
+    "app/java/src/dummy/DummyActivity.java",
+    "app/java/src/dummy/NativeLibraries.java",
+  ]
+  deps = [
+    ":app_resources",
+    ":dep_resources",
+    ":empty_dep_resources",
+  ]
+  include_all_resources = true
+  testonly = true
+}