Add an option to disable NaCl at compile time for platforms where it doesn't build yet

chrome/renderer/render_process.cc

 // Copyright (c) 2006-2008 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 "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <objidl.h>
 #include <mlang.h>
@@ skipping 64 matching lines @@
   }
 
   if (command_line.HasSwitch(switches::kEnableWatchdog)) {
     // TODO(JAR): Need to implement renderer IO msgloop watchdog.
   }
 
   if (command_line.HasSwitch(switches::kDumpHistogramsOnExit)) {
     StatisticsRecorder::set_dump_on_exit(true);
   }
 
+#ifndef DISABLE_NACL
   if (command_line.HasSwitch(switches::kInternalNaCl))
     RegisterInternalNaClPlugin(RenderProcess::LaunchNaClProcess);
+#endif
 
   if (command_line.HasSwitch(switches::kEnableByteRangeSupport)) {
     webkit_glue::SetMediaCacheEnabled(true);
   }
 
   FilePath module_path;
   initialized_media_library_ =
       PathService::Get(base::DIR_MODULE, &module_path) &&
       media::InitializeMediaLibrary(module_path);
 }
@@ skipping 164 matching lines @@
 }
 
 void RenderProcess::ClearTransportDIBCache() {
   for (size_t i = 0; i < arraysize(shared_mem_cache_); ++i) {
     if (shared_mem_cache_[i]) {
       FreeTransportDIB(shared_mem_cache_[i]);
       shared_mem_cache_[i] = NULL;
     }
   }
 }