Switch from a DCHECK to RAW_LOG in base::LaunchProcess.

base/process/launch_posix.cc

 // Copyright (c) 2012 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.
 
 #include "base/process/launch.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <signal.h>
@@ skipping 417 matching lines @@
 
     CloseSuperfluousFds(fd_shuffle2);
 
     // Set NO_NEW_PRIVS by default. Since NO_NEW_PRIVS only exists in kernel
     // 3.5+, do not check the return value of prctl here.
 #if defined(OS_LINUX)
 #ifndef PR_SET_NO_NEW_PRIVS
 #define PR_SET_NO_NEW_PRIVS 38
 #endif
     if (!options.allow_new_privs) {
-      if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
-        DCHECK_EQ(EINVAL, errno);
+      if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) && errno != EINVAL) {
+        // Only log if the error is not EINVAL (i.e. not supported).
+        RAW_LOG(FATAL, "prctl(PR_SET_NO_NEW_PRIVS) failed");
       }
     }
 #endif
 
     for (size_t i = 0; i < argv.size(); i++)
       argv_cstr[i] = const_cast<char*>(argv[i].c_str());
     argv_cstr[argv.size()] = NULL;
     execvp(argv_cstr[0], argv_cstr.get());
 
     RAW_LOG(ERROR, "LaunchProcess: failed to execvp:");
@@ skipping 198 matching lines @@
                               std::string* output,
                               int* exit_code) {
   // Run |execve()| with the current environment and store "unlimited" data.
   GetAppOutputInternalResult result = GetAppOutputInternal(
       cl.argv(), NULL, output, std::numeric_limits<std::size_t>::max(), true,
       exit_code);
   return result == EXECUTE_SUCCESS;
 }
 
 }  // namespace base