Store and load icudtl.dat directly from the apk rather than extracting on start-up

build/config/android/rules.gni

Index: build/config/android/rules.gni
diff --git a/build/config/android/rules.gni b/build/config/android/rules.gni
index 335041d817fa1eda8a693554775985ec0dff1cc8..32fe2d138352e2053641a1cc94da1fed8f31fd12 100644
--- a/build/config/android/rules.gni
+++ b/build/config/android/rules.gni
@@ -1512,6 +1512,12 @@ template("android_apk") {
     dex_path = final_dex_path
     load_library_from_apk = _load_library_from_apk
     create_density_splits = _create_density_splits
+    if (defined(invoker.extensions_to_not_compress)) {
+      extensions_to_not_compress = invoker.extensions_to_not_compress
+    } else {
+      # Allow icu data to be loaded directly from the .apk.
+      extensions_to_not_compress = "dat"
+    }
 
     version_code = _version_code
     version_name = _version_name