Enable --enable-nacl-debug switch on Linux.

chrome/browser/nacl_host/nacl_process_host.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/nacl_host/nacl_process_host.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 598 matching lines @@
 }
 
 bool NaClProcessHost::StartNaClExecution() {
   NaClBrowser* nacl_browser = NaClBrowser::GetInstance();
 
   nacl::NaClStartParams params;
   params.validation_cache_enabled = nacl_browser->ValidationCacheIsEnabled();
   params.validation_cache_key = nacl_browser->GetValidationCacheKey();
   params.version = chrome::VersionInfo().CreateVersionString();
   params.enable_exception_handling = enable_exception_handling_;
+  params.enable_debug_stub =
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableNaClDebug);
 
   base::PlatformFile irt_file = nacl_browser->IrtFile();
   CHECK_NE(irt_file, base::kInvalidPlatformFileValue);
 
   const ChildProcessData& data = process_->GetData();
   for (size_t i = 0; i < internal_->sockets_for_sel_ldr.size(); i++) {
     if (!ShareHandleToSelLdr(data.handle,
                              internal_->sockets_for_sel_ldr[i], true,
                              &params.handles)) {
       return false;
@@ skipping 134 matching lines @@
   } else {
     NaClStartDebugExceptionHandlerThread(
         process_handle.Take(), info,
         base::MessageLoopProxy::current(),
         base::Bind(&NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker,
                    weak_factory_.GetWeakPtr()));
     return true;
   }
 }
 #endif