Move sandbox_policy to content.

content/browser/content_browser_client.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/browser/content_browser_client.h"
 
 #include "base/memory/singleton.h"
 #include "content/browser/webui/empty_web_ui_factory.h"
 #include "googleurl/src/gurl.h"
 
@@ skipping 68 matching lines @@
     net::CookieOptions* options) {
   return true;
 }
 
 #if defined(OS_LINUX)
 int ContentBrowserClient::GetCrashSignalFD(const std::string& process_type) {
   return -1;
 }
 #endif
 
-#if defined(OS_WIN)
-bool ContentBrowserClient::SandboxPlugin(CommandLine* command_line,
-                                         sandbox::TargetPolicy* policy) {
-  return false;
-}
-#endif
-
 }  // namespace content