diff --git a/patches/common/chromium/.patches b/patches/common/chromium/.patches
index 0bef8abb81dd..e6c1499b2a5d 100644
--- a/patches/common/chromium/.patches
+++ b/patches/common/chromium/.patches
@@ -75,3 +75,4 @@ color_chooser_win.patch
 fix_disable_usage_of_abort_report_np_in_mas_builds.patch
 fix_disable_usage_of_pthread_fchdir_np_and_pthread_chdir_np_in_mas.patch
 fix_disable_usage_of_setapplicationisdaemon_and.patch
+fixme_disable_field-trial_descriptor_dcheck.patch
diff --git a/patches/common/chromium/fixme_disable_field-trial_descriptor_dcheck.patch b/patches/common/chromium/fixme_disable_field-trial_descriptor_dcheck.patch
new file mode 100644
index 000000000000..b28538dc8f10
--- /dev/null
+++ b/patches/common/chromium/fixme_disable_field-trial_descriptor_dcheck.patch
@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jeremy Apthorp <nornagon@nornagon.net>
+Date: Thu, 21 Feb 2019 17:17:51 -0800
+Subject: FIXME: disable field-trial descriptor DCHECK
+
+
+diff --git a/content/browser/child_process_launcher_helper_posix.cc b/content/browser/child_process_launcher_helper_posix.cc
+index 30f424d662bdc72e692bf86d0270ef1cb50fd8fc..2b2ed424152f5feccad81eef3c89892d6189f477 100644
+--- a/content/browser/child_process_launcher_helper_posix.cc
++++ b/content/browser/child_process_launcher_helper_posix.cc
+@@ -83,8 +83,9 @@ std::unique_ptr<PosixFileDescriptorInfo> CreateDefaultPosixFilesToMap(
+ // Mac shared memory doesn't use file descriptors.
+ #if !defined(OS_MACOSX)
+   int fd = base::FieldTrialList::GetFieldTrialDescriptor();
+-  DCHECK_NE(fd, -1);
+-  files_to_register->Share(service_manager::kFieldTrialDescriptor, fd);
++  //DCHECK_NE(fd, -1);
++  if (fd >= 0)
++    files_to_register->Share(service_manager::kFieldTrialDescriptor, fd);
+ #endif
+ 
+   DCHECK(mojo_channel_remote_endpoint.is_valid());