GN: Use lib.unstripped rather than lib.stripped. Add a toolchain.gni

mojo/runner/BUILD.gn

 # 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("//mojo/generate_mojo_shell_assets_list.gni")
 import("//mojo/public/mojo_application.gni")
 import("//testing/test.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 # We don't support building in the component build since mojo apps are
@@ skipping 288 matching lines @@
     deps = [
       ":bootstrap",
       ":bootstrap_java",
       "//components/clipboard:apptests",
       "//components/resource_provider:apptests",
       "//components/view_manager:apptests",
       "//mojo/services/network:apptests",
     ]
 
     sources = [
-      "$root_out_dir/lib.stripped/libbootstrap$android_product_extension",
       "$root_out_dir/obj/mojo/runner/bootstrap_java.dex.jar",
+      "$root_shlib_dir/${shlib_prefix}bootstrap$shlib_extension",
     ]
 
     apptest_outputs = [
       "clipboard",
       "clipboard_apptests",
       "resource_provider",
       "resource_provider_apptests",
       "view_manager_apptests",
       "network_service",
       "network_service_apptests",
@@ skipping 12 matching lines @@
       ":copy_mojo_runner_apptests_assets",
     ]
     dir = mojo_runner_apptests_assets_dir
   }
 
   copy("copy_mojo_runner") {
     sources = [
       "$root_out_dir/exe.stripped/mojo_runner",
     ]
     outputs = [
-      "$root_out_dir/lib.stripped/libmojo_runner$android_product_extension",
+      "$root_shlib_dir/${shlib_prefix}mojo_runner$shlib_extension",
     ]
     deps = [
       ":mojo_runner",
     ]
   }
 
   copy_ex("copy_mojo_runner_test_assets") {
     testonly = true
     clear_dir = true
     dest = mojo_runner_test_assets_dir
     deps = [
       "//mojo/services/test_service:test_app",
       "//mojo/services/test_service:test_request_tracker_app",
     ]
 
     # Directories can't be specified as sources so pass manually to the script.
     args = [
       "--files=" + rebase_path("$root_out_dir/test_app", root_build_dir),
       "--files=" +
           rebase_path("$root_out_dir/test_request_tracker_app", root_build_dir),
     ]
   }
 
   android_apk("mojo_runner_apptests_apk") {
     testonly = true
     apk_name = "MojoRunnerApptests"
     android_manifest = "android/apk/AndroidManifest.xml"
-    native_libs = [ "libmojo_runner$android_product_extension" ]
+    native_libs = [ "${shlib_prefix}mojo_runner$shlib_extension" ]
     asset_location = mojo_runner_apptests_assets_dir
 
     deps = [
       ":build_mojo_runner_apptests_assets",
       ":copy_mojo_runner",
       ":java",
       ":resources",
       "//base:base_java",
       "//third_party/android_tools:google_play_services_default_resources",
       "//ui/platform_window/android:platform_window_java",
@@ skipping 92 matching lines @@
   ]
 
   deps = [
     "//base",
     "//mojo/application/public/cpp:test_support",
     "//mojo/runner/test:bindings",
     "//mojo/services/network/public/interfaces",
     "//third_party/mojo/src/mojo/public/cpp/bindings:callback",
   ]
 }