[Linux] Use PR_SET_NO_NEW_PRIVS by default in base/process/launch.h.

chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc

Index: chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc
diff --git a/chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc b/chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc
index 344fcf42bbdc90743b8b0ed781cd4f4204dd9b48..e4dd5a849958399d3a201368f5fbf4025958de42 100644
--- a/chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc
+++ b/chrome/browser/printing/cloud_print/test/cloud_print_policy_browsertest.cc
@@ -45,9 +45,16 @@ IN_PROC_BROWSER_TEST_F(CloudPrintPolicyTest, NormalPassedFlag) {
       chrome::NOTIFICATION_TAB_ADDED,
       content::NotificationService::AllSources());
 
+  base::LaunchOptions options;
+#if defined(OS_LINUX)
+  // To prevent accidental privilege sharing to an untrusted child, processes
+  // are started with PR_SET_NO_NEW_PRIVS. Do not set that here, since this
+  // new child will be a test browser process.
+  options.allow_new_privs = true;
+#endif
   base::ProcessHandle handle;
   bool launched =
-      base::LaunchProcess(new_command_line, base::LaunchOptions(), &handle);
+      base::LaunchProcess(new_command_line, options, &handle);
   EXPECT_TRUE(launched);
 
   observer.Wait();
@@ -67,9 +74,16 @@ IN_PROC_BROWSER_TEST_F(CloudPrintPolicyTest, DISABLED_CloudPrintPolicyFlag) {
   CommandLine new_command_line(GetCommandLineForRelaunch());
   new_command_line.AppendSwitch(switches::kCheckCloudPrintConnectorPolicy);
 
+  base::LaunchOptions options;
+#if defined(OS_LINUX)
+  // To prevent accidental privilege sharing to an untrusted child, processes
+  // are started with PR_SET_NO_NEW_PRIVS. Do not set that here, since this
+  // new child will be a test browser process.
+  options.allow_new_privs = true;
+#endif
   base::ProcessHandle handle;
   bool launched =
-      base::LaunchProcess(new_command_line, base::LaunchOptions(), &handle);
+      base::LaunchProcess(new_command_line, options, &handle);
   EXPECT_TRUE(launched);
 
   int exit_code = -100;