try v8

chrome/android/BUILD.gn

Index: chrome/android/BUILD.gn
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
index 75e6228e2541b9821dac54a3102a817da1ac3dc7..00ad0be70efec0975554d198c904a65434cec187 100644
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -458,7 +458,12 @@ shared_library("chrome") {
 }
 
 # GYP: none
-if (!defined(webview_only_libmonochrome) || !webview_only_libmonochrome) {
+#
+# //chrome/android/monochrome is only needed in two cases
+# - build with 32-bit default_toolchain,
+# - or build with 32-bit android_secondary_abi_toolchain.
+if (!android_64bit_target_cpu ||
+    current_toolchain == android_secondary_abi_toolchain) {
   shared_library("monochrome") {
     sources = chrome_apk_gypi.monochrome_app_native_sources
     deps = [
@@ -473,6 +478,12 @@ if (!defined(webview_only_libmonochrome) || !webview_only_libmonochrome) {
 
     public_configs = extra_chrome_shared_library_configs
   }
+} else {
+  group("monochrome_secondary_abi_lib") {
+    public_deps = [
+      ":monochrome($android_secondary_abi_toolchain)",
+    ]
+  }
 }
 
 # GYP: //chrome/android/chrome_apk.gyp:libchrome_sync_shell