Zygote most of the uses of the utility process on Linux

content/app/content_main.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 "content/app/content_main.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/trace_event.h"
@@ skipping 174 matching lines @@
 // On platforms that use the zygote, we have a special subset of
 // subprocesses that are launched via the zygote.  This function
 // fills in some process-launching bits around ZygoteMain().
 // Returns the exit code of the subprocess.
 int RunZygote(const content::MainFunctionParams& main_function_params,
               content::ContentMainDelegate* delegate) {
   static const MainFunction kMainFunctions[] = {
     { switches::kRendererProcess,    RendererMain },
     { switches::kWorkerProcess,      WorkerMain },
     { switches::kPpapiPluginProcess, PpapiPluginMain },
+    { switches::kUtilityProcess,     UtilityMain },
   };
 
   scoped_ptr<content::ZygoteForkDelegate> zygote_fork_delegate;
   if (delegate) zygote_fork_delegate.reset(delegate->ZygoteStarting());
 
   // This function call can return multiple times, once per fork().
   if (!ZygoteMain(main_function_params, zygote_fork_delegate.get()))
     return 1;
 
   if (delegate) delegate->ZygoteForked();
@@ skipping 255 matching lines @@
   _CrtDumpMemoryLeaks();
 #endif  // _CRTDBG_MAP_ALLOC
 
   _Module.Term();
 #endif  // OS_WIN
 
   return exit_code;
 }
 
 }  // namespace content