Zygote most of the uses of the utility process on Linux

chrome/browser/importer/external_process_importer_client.cc

 // Copyright (c) 2011 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/importer/external_process_importer_client.h"
 
 #include "base/bind.h"
 #include "base/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/importer/external_process_importer_host.h"
@@ skipping 59 matching lines @@
       BrowserThread::IO, FROM_HERE,
       base::Bind(&ExternalProcessImporterClient::StartProcessOnIOThread,
                  this,
                  thread_id));
 }
 
 void ExternalProcessImporterClient::StartProcessOnIOThread(
     BrowserThread::ID thread_id) {
   utility_process_host_ = new UtilityProcessHost(this, thread_id);
   utility_process_host_->set_no_sandbox(true);
+  utility_process_host_->set_use_linux_zygote(false);
 
 #if defined(OS_MACOSX)
   base::environment_vector env;
   std::string dylib_path = GetFirefoxDylibPath().value();
   if (!dylib_path.empty())
     env.push_back(std::make_pair("DYLD_FALLBACK_LIBRARY_PATH", dylib_path));
   utility_process_host_->set_env(env);
 #endif
 
   // Dictionary of all localized strings that could be needed by the importer
@@ skipping 212 matching lines @@
   template_url_vec.reserve(template_urls.size());
   std::vector<TemplateURL>::const_iterator iter;
   for (iter = template_urls.begin();
        iter != template_urls.end();
        ++iter) {
     template_url_vec.push_back(new TemplateURL(*iter));
   }
   bridge_->SetKeywords(template_url_vec, default_keyword_index,
                        unique_on_host_and_path);
 }