Make ChildProcessHost be used through an interface in content/public, instead of by inheritence.

chrome/browser/service/service_process_control.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/service/service_process_control.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/process_util.h"
 #include "base/stl_util.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/upgrade_detector.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/service_messages.h"
 #include "chrome/common/service_process_util.h"
-#include "content/common/child_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
+#include "content/public/common/child_process_host.h"
 #include "ui/base/ui_base_switches.h"
 
 using content::BrowserThread;
+using content::ChildProcessHost;
 
 // ServiceProcessControl implementation.
 ServiceProcessControl::ServiceProcessControl() {
 }
 
 ServiceProcessControl::~ServiceProcessControl() {
 }
 
 void ServiceProcessControl::ConnectInternal() {
   // If the channel has already been established then we run the task
@@ skipping 276 matching lines @@
   if (base::LaunchProcess(*cmd_line_, options, NULL)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&Launcher::DoDetectLaunched, this));
   } else {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE, base::Bind(&Launcher::Notify, this));
   }
 }
 #endif  // !OS_MACOSX