Instrument setup.exe in the SyzyAsan builds.

build/win/syzygy/syzygy.gni

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 assert(is_win)
 
 # Where the output binaries will be placed.
 syzygy_dest_dir = "$root_out_dir/syzygy"
 
 # Instruments a binary with SyzyAsan.
@@ skipping 52 matching lines @@
       "--input_symbol",
       rebase_path(input_pdb, root_build_dir),
       "--filter",
       rebase_path(filter, root_build_dir),
       "--output-filter-file",
       rebase_path(output_filter, root_build_dir),
       "--destination_dir",
       rebase_path(dest_dir, root_build_dir),
     ]
 
+    if (defined(invoker.extra_args)) {
+      args += invoker.extra_args
+    }
+
     deps = [
       "//build/win/syzygy:copy_syzyasan_binaries",
     ]
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
     forward_variables_from(invoker,
                            [
                              "data_deps",
                              "public_deps",
                              "testonly",
                            ])
   }
 }