[Linux] Fix browser relaunching, which broke after enabling NO_NEW_PRIVS by default.

chrome/browser/first_run/upgrade_util_linux.cc

Index: chrome/browser/first_run/upgrade_util_linux.cc
diff --git a/chrome/browser/first_run/upgrade_util_linux.cc b/chrome/browser/first_run/upgrade_util_linux.cc
index 3a1003138ffff1400d44fbe8e56514c905cfcdf8..4fbe33b5c3eb515fbcb6157e4d50d134e7d65c9e 100644
--- a/chrome/browser/first_run/upgrade_util_linux.cc
+++ b/chrome/browser/first_run/upgrade_util_linux.cc
@@ -23,7 +23,10 @@ double saved_last_modified_time_of_exe = 0;
 namespace upgrade_util {
 
 bool RelaunchChromeBrowser(const CommandLine& command_line) {
-  return base::LaunchProcess(command_line, base::LaunchOptions(), NULL);
+  base::LaunchOptions options;
+  // Don't set NO_NEW_PRIVS on the relaunched browser process.
+  options.allow_new_privs = true;
+  return base::LaunchProcess(command_line, options, NULL);
 }
 
 bool IsUpdatePendingRestart() {