Remove kChildCleanExit since it's not used anymore.

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1191 matching lines @@
     switches::kEnableWebAudio,
 #else
     // Need to be able to disable webaudio on other platforms where it
     // is enabled by default.
     switches::kDisableWebAudio,
 #endif
 #if defined(OS_MACOSX)
     // Allow this to be set when invoking the browser and relayed along.
     switches::kEnableSandboxLogging,
 #endif
-#if defined(OS_POSIX)
-    switches::kChildCleanExit,
-#endif
 #if defined(OS_WIN)
     switches::kEnableDirectWrite,
     switches::kEnableHighResolutionTime,
     switches::kHighDPISupport,
 #endif
   };
   renderer_cmd->CopySwitchesFrom(browser_cmd, kSwitchNames,
                                  arraysize(kSwitchNames));
 
   if (browser_cmd.HasSwitch(switches::kTraceStartup) &&
@@ skipping 934 matching lines @@
 void RenderProcessHostImpl::SetWebUIHandle(
 int32 view_routing_id,
 mojo::ScopedMessagePipeHandle handle) {
   if (!render_process_host_mojo_)
     render_process_host_mojo_.reset(new RenderProcessHostMojoImpl(this));
   render_process_host_mojo_->SetWebUIHandle(view_routing_id, handle.Pass());
 }
 #endif
 
 }  // namespace content