GN: Side-load dex files as well as native code in incremental installs

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index cf8700f5d2f3ea02a44474b8cb22e84707d9ce16..84d8bf94b6f86fe01dd57b398207c203205b8683 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -1604,14 +1604,6 @@ if (is_android) {
     ]
 
     DEPRECATED_java_in_dir = "android/java/src"
-    if (is_debug) {
-      java_files = [
-        "android/java/debug_src/org/chromium/base/IncrementalInstall.java",
-        "android/java/debug_src/org/chromium/base/Reflect.java",
-      ]
-    } else {
-      java_files = [ "android/java/release_src/org/chromium/base/IncrementalInstall.java" ]
-    }
 
     # A new version of NativeLibraries.java (with the actual correct values)
     # will be created when creating an apk.