seccomp: remove build-time flags

chrome/browser/zygote_host_linux.cc

 // Copyright (c) 2010 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 "chrome/browser/zygote_host_linux.h"
 
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ skipping 86 matching lines @@
   // Should this list be obtained from browser_render_process_host.cc?
   static const char* kForwardSwitches[] = {
     switches::kAllowSandboxDebugging,
     switches::kLoggingLevel,
     switches::kEnableLogging,  // Support, e.g., --enable-logging=stderr.
     switches::kV,
     switches::kVModule,
     switches::kUserDataDir,  // Make logs go to the right file.
     // Load (in-process) Pepper plugins in-process in the zygote pre-sandbox.
     switches::kRegisterPepperPlugins,
-#if defined(USE_SECCOMP_SANDBOX)
     switches::kDisableSeccompSandbox,
-#else
     switches::kEnableSeccompSandbox,
-#endif
   };
   cmd_line.CopySwitchesFrom(browser_command_line, kForwardSwitches,
                             arraysize(kForwardSwitches));
 
   sandbox_binary_ = sandbox_cmd.c_str();
   struct stat st;
 
   if (!sandbox_cmd.empty() && stat(sandbox_binary_.c_str(), &st) == 0) {
     if (access(sandbox_binary_.c_str(), X_OK) == 0 &&
         (st.st_uid == 0) &&
@@ skipping 233 matching lines @@
       !read_pickle.ReadInt(&iter, &tmp_exit_code)) {
     LOG(WARNING) << "Error parsing GetTerminationStatus response from zygote.";
     return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   }
 
   if (exit_code)
     *exit_code = tmp_exit_code;
 
   return static_cast<base::TerminationStatus>(status);
 }