Revert 149692 - Create a LinuxSandbox class.

content/browser/renderer_host/render_sandbox_host_linux.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/renderer_host/render_sandbox_host_linux.h"
 
 #include <fcntl.h>
 #include <fontconfig/fontconfig.h>
 #include <stdint.h>
 #include <unistd.h>
@@ skipping 10 matching lines @@
 #include "base/linux_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/pickle.h"
 #include "base/posix/unix_domain_socket.h"
 #include "base/process_util.h"
 #include "base/shared_memory.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "content/common/font_config_ipc_linux.h"
-#include "content/common/sandbox_linux.h"
+#include "content/common/sandbox_methods_linux.h"
 #include "content/common/webkitplatformsupport_impl.h"
 #include "skia/ext/SkFontHost_fontconfig_direct.h"
 #include "third_party/npapi/bindings/npapi_extensions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/linux/WebFontInfo.h"
 #include "ui/gfx/font_render_params_linux.h"
 
-using content::LinuxSandbox;
 using WebKit::WebCString;
 using WebKit::WebFontInfo;
 using WebKit::WebUChar;
 
 // http://code.google.com/p/chromium/wiki/LinuxSandboxIPC
 
 // BEWARE: code in this file run across *processes* (not just threads).
 
 // This code runs in a child process
 class SandboxIPCProcess  {
@@ skipping 690 matching lines @@
 }
 
 RenderSandboxHostLinux::~RenderSandboxHostLinux() {
   if (initialized_) {
     if (HANDLE_EINTR(close(renderer_socket_)) < 0)
       PLOG(ERROR) << "close";
     if (HANDLE_EINTR(close(childs_lifeline_fd_)) < 0)
       PLOG(ERROR) << "close";
   }
 }