Remove kChildCleanExit since it's not used anymore.

content/browser/child_process_launcher.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 "content/browser/child_process_launcher.h"
 
 #include <utility>  // For std::pair.
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 40 matching lines @@
 // ref counted object allows us to automatically terminate the process when the
 // parent class destructs, while still holding on to state that we need.
 class ChildProcessLauncher::Context
     : public base::RefCountedThreadSafe<ChildProcessLauncher::Context> {
  public:
   Context()
       : client_(NULL),
         client_thread_id_(BrowserThread::UI),
         termination_status_(base::TERMINATION_STATUS_NORMAL_TERMINATION),
         exit_code_(RESULT_CODE_NORMAL_EXIT),
-        starting_(true)
+        starting_(true),
+        terminate_child_on_shutdown_(true)
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
         , zygote_(false)
 #endif
         {
-#if defined(OS_POSIX)
-          terminate_child_on_shutdown_ = !CommandLine::ForCurrentProcess()->
-              HasSwitch(switches::kChildCleanExit);
-#else
-          terminate_child_on_shutdown_ = true;
-#endif
   }
 
   void Launch(
       SandboxedProcessLauncherDelegate* delegate,
       CommandLine* cmd_line,
       int child_process_id,
       Client* client) {
     client_ = client;
 
     CHECK(BrowserThread::GetCurrentThreadIdentifier(&client_thread_id_));
@@ skipping 410 matching lines @@
 
 void ChildProcessLauncher::SetProcessBackgrounded(bool background) {
   BrowserThread::PostTask(
       BrowserThread::PROCESS_LAUNCHER, FROM_HERE,
       base::Bind(
           &ChildProcessLauncher::Context::SetProcessBackgrounded,
           GetHandle(), background));
 }
 
 void ChildProcessLauncher::SetTerminateChildOnShutdown(
-  bool terminate_on_shutdown) {
+    bool terminate_on_shutdown) {
   if (context_.get())
     context_->set_terminate_child_on_shutdown(terminate_on_shutdown);
 }
 
 }  // namespace content