GN: asset_location -> android_assets() for html_viewer

components/html_viewer/BUILD.gn

Index: components/html_viewer/BUILD.gn
diff --git a/components/html_viewer/BUILD.gn b/components/html_viewer/BUILD.gn
index 447d0a221304828c1421a6d0c1c90a6303a98faa..4e4110452a4c5a332b6165cae031e40cb92f936a 100644
--- a/components/html_viewer/BUILD.gn
+++ b/components/html_viewer/BUILD.gn
@@ -9,7 +9,7 @@ import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 
 if (is_android) {
-  import("//build/config/android/internal_rules.gni")
+  import("//build/config/android/rules.gni")
   import("//mojo/generate_mojo_shell_assets_list.gni")
 }
 
@@ -291,27 +291,15 @@ mojo_native_application("layout_test_html_viewer") {
 }
 
 if (is_android) {
-  html_viewer_unittests_assets = "$root_build_dir/html_viewer_unittests_assets"
-
-  copy_ex("copy_unittest_assets") {
-    clear_dir = true
-    deps = [
-      ":pak",
-      "//gin",
-    ]
-    dest = html_viewer_unittests_assets
+  android_assets("unittest_assets") {
     sources = [
       "$root_build_dir/html_viewer.pak",
     ]
-    renaming_sources = v8_external_startup_data_renaming_sources
-    renaming_destinations = v8_external_startup_data_renaming_destinations
-  }
-
-  generate_mojo_shell_assets_list("build_unittest_assets") {
     deps = [
-      ":copy_unittest_assets",
+      ":pak",
+      "//v8:v8_external_startup_data_assets",
     ]
-    dir = html_viewer_unittests_assets
+    disable_compression = true
   }
 }
 
@@ -340,8 +328,8 @@ test("html_viewer_unittests") {
   ]
 
   if (is_android) {
-    deps += [ ":build_unittest_assets" ]
-    apk_asset_location = html_viewer_unittests_assets
+    apk_deps = [ ":unittest_assets" ]
+    write_asset_list = true
   }
 
   configs += [ "//v8:external_startup_data" ]