Create Monochrome-specific repack() targets

chrome/android/BUILD.gn

Index: chrome/android/BUILD.gn
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
index d8cd6a250f3ac91b0e21b278e0234e2da2439a0c..2d296435b4046626c869f2ec947bfdb8913a5c1c 100644
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -486,7 +486,23 @@ android_resources("chrome_public_apk_resources") {
   ]
 }
 
-android_assets("chrome_public_apk_assets") {
+# TODO(agrieve): Delete once downstream no longer references this target.
+java_group("chrome_public_apk_assets") {
+  deps = [
+    ":chrome_public_non_pak_assets",
+    ":chrome_public_pak_assets",
+  ]
+}
+
+java_group("chrome_public_non_pak_assets") {
+  deps = [
+    "//chrome/android/webapk/libs/runtime_library:runtime_library_assets",
+    "//third_party/icu:icu_assets",
+    "//v8:v8_external_startup_data_assets",
+  ]
+}
+
+android_assets("chrome_public_pak_assets") {
   sources = [
     "$root_out_dir/chrome_100_percent.pak",
     "$root_out_dir/resources.pak",
@@ -494,7 +510,6 @@ android_assets("chrome_public_apk_assets") {
   disable_compression = true
 
   deps = [
-    "//chrome:packed_extra_resources",
     "//chrome:packed_resources",
     "//chrome/android/webapk/libs/runtime_library:runtime_library_assets",
     "//third_party/icu:icu_assets",