PATCH: Re-add use_cxx17

Author: dumganhar

build/config/compiler/BUILD.gn

@@ -175,6 +175,10 @@ declare_args() {
   # a reproducer file to be saved.
   save_reproducers_on_lld_crash = false
 
+  # Allow projects that wish to stay on C++17 to override Chromium's default.
+  # TODO(crbug.com/1402249): evaluate removing this end of 2023
+  use_cxx17 = false
+
   # Enable ShadowCallStack for compiled binaries. SCS stores a pointer to a
   # shadow call stack in register x18. Hence, x18 must not be used by the OS
   # or libraries. We assume that to be the case for high end Android