🔔 Allow android_* targets to specify proguard flags for apks

third_party/gvr-android-sdk/BUILD.gn

 # Copyright 2016 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")
 
 gvr_arch = current_cpu
 if (gvr_arch == "x64") {
   gvr_arch = "x86_64"
 }
 
 android_aar_prebuilt("gvr_common_java") {
   aar_path = "src/ndk-beta/lib/common_library.aar"
   jar_excluded_patterns = [ "*/protobuf/*" ]
 }
 
 android_aar_prebuilt("gvr_base_java") {
   aar_path = "src/libraries/base/base.aar"
+  proguard_configs = [ "proguard/base.flags" ]
 }
 
 android_aar_prebuilt("gvr_controller_java") {
   aar_path = "src/libraries/controller/controller.aar"
 }
 
 source_set("libgvr") {
   if (gvr_arch != "mipsel") {
     data_deps = [
       ":libgvr_copy",
     ]
     libs = [ "${root_out_dir}/libgvr.so" ]
   }
 }
 
 if (gvr_arch != "mipsel") {
   copy("libgvr_copy") {
     sources = [
       "src/ndk-beta/lib/android_${gvr_arch}/libgvr.so",
     ]
     outputs = [
       "${root_out_dir}/libgvr.so",
     ]
   }
 }
 
 config("libgvr_config") {
   include_dirs = [ "src/ndk-beta/include/" ]
 }