fix is_cfi build error in debug

images/bromite-build/build_args.gni

@@ -15,6 +15,7 @@ if(getenv("TARGET_CPU") != "") {
 
 enable_kythe_annotations = true
 clang_use_chrome_plugins = false
+chrome_public_manifest_package = "org.bromite.bromite.dev"
 
 if(_is_debug_build == "true") {
 # print("Debug build on")
@@ -24,6 +25,11 @@ if(_is_debug_build == "true") {
   symbol_level = 1
   strip_debug_info = false
   generate_linker_map = false
+
+  # since is_cfi require use_thin_lto
+  # but not work in debug mode
+  is_cfi = false # disable it
+  use_cfi_cast = false # disable it
 } else {
   generate_linker_map = true
 }