Reland of Move language pak files to assets.

base/android/java/templates/BuildConfig.template

Index: base/android/java/templates/BuildConfig.template
diff --git a/base/android/java/templates/BuildConfig.template b/base/android/java/templates/BuildConfig.template
index e135e2400b213d417b720509755eae0c7b20ad56..a9040ab951130288b4a0c6161ae72191068761a1 100644
--- a/base/android/java/templates/BuildConfig.template
+++ b/base/android/java/templates/BuildConfig.template
@@ -29,4 +29,19 @@ public class BuildConfig {
     public static final boolean DCHECK_IS_ON = false;
 #endif
 
+    // Sorted list of compressed assets contained in the apk (AssetManager.list() is slow).
+    public static final String[] COMPRESSED_ASSETS =
+#if defined(COMPRESSED_ASSETS_LIST)
+      COMPRESSED_ASSETS_LIST;
+#else
+      {};
+#endif
+
+    // Sorted list of uncompressed assets contained in the apk (AssetManager.list() is slow).
+    public static final String[] UNCOMPRESSED_ASSETS =
+#if defined(UNCOMPRESSED_ASSETS_LIST)
+      UNCOMPRESSED_ASSETS_LIST;
+#else
+      {};
+#endif
 }