Replace usages of DEPRECATED_java_in_dir with java_files

testing/android/native_test/BUILD.gn

Index: testing/android/native_test/BUILD.gn
diff --git a/testing/android/native_test/BUILD.gn b/testing/android/native_test/BUILD.gn
index 34c5906d96f2b2f30eae44831f8688ccef463468..8ea6683fc74f5802372e574eaa3304159f7e8028 100644
--- a/testing/android/native_test/BUILD.gn
+++ b/testing/android/native_test/BUILD.gn
@@ -44,7 +44,12 @@ android_library("native_test_java") {
     "//testing/android/reporter:reporter_java",
   ]
   srcjar_deps = [ "//base:base_native_libraries_gen" ]
-  DEPRECATED_java_in_dir = "java/src"
+  java_files = [
+    "java/src/org/chromium/native_test/NativeBrowserTestActivity.java",
+    "java/src/org/chromium/native_test/NativeTestActivity.java",
+    "java/src/org/chromium/native_test/NativeTestInstrumentationTestRunner.java",
+    "java/src/org/chromium/native_test/NativeUnitTestActivity.java",
+  ]
   jar_excluded_patterns = [ "*/NativeLibraries.class" ]
 }