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

build/android/tests/bad_resources/app/java/src/dummy/DummyActivity.java

+// 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.
+
+package dummy;
+
+import android.app.Activity;
+
+import dummy.dep.R;
+
+/**
+ * Dummy activity to build apk.
+ *
+ * This class exists to reference a resource ID in a dependency that doesn't have that resource.
+ */
+public class DummyActivity extends Activity {
+    private static final String TAG = "Dummy";
+
+    public String getResources() {
+        return getString(R.string.hello) + " " + getString(R.string.world);
+    }
+}