Cleanup: Only define various NaCl flags when PPAPI is enabled.

chrome/browser/about_flags.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 "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 943 matching lines @@
         chromeos::switches::kDisableNetworkPortalNotification)
   },
 #endif
   {
     "enable-download-resumption",
     IDS_FLAGS_ENABLE_DOWNLOAD_RESUMPTION_NAME,
     IDS_FLAGS_ENABLE_DOWNLOAD_RESUMPTION_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEnableDownloadResumption)
   },
-  // Native client is compiled out when DISABLE_NACL is defined.
-#if !defined(DISABLE_NACL)
+#if defined(ENABLE_PLUGINS)
   {
     "allow-nacl-socket-api",
     IDS_FLAGS_ALLOW_NACL_SOCKET_API_NAME,
     IDS_FLAGS_ALLOW_NACL_SOCKET_API_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE_AND_VALUE(switches::kAllowNaClSocketAPI, "*")
   },
 #endif
 #if defined(OS_CHROMEOS) || defined(OS_WIN) || defined(OS_LINUX)
   {
@@ skipping 1486 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags