linux: Fix stack-related sub-process shutdown crashes (fixes #3912)

On Linux systems the stack frame reference canary will be purposely
changed when forking sub-processes (see https://crbug.com/40181003).
To avoid sub-process shutdown crashes the NO_STACK_PROTECTOR
annotation must be added to all functions in the call stack leading to
CefExecuteProcess(). Applications that cannot add this annotation must
instead pass the `--change-stack-guard-on-fork=disable` command-line
flag.

tools/make_ctocpp_impl.py

@@ -11,6 +11,8 @@ def make_ctocpp_impl_proto(clsname, name, func, parts):
   const = ''
 
   proto = 'NO_SANITIZE("cfi-icall") '
+  if func.has_attrib('no_stack_protector'):
+    proto += 'NO_STACK_PROTECTOR '
   if clsname is None:
     proto += 'CEF_GLOBAL ' + parts['retval'] + ' '
   else: