Do not use WebSandboxSupport when sandbox is disabled.

content/renderer/renderer_webkitplatformsupport_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.
 
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/metrics/histogram.h"
@@ skipping 146 matching lines @@
 
 //------------------------------------------------------------------------------
 
 RendererWebKitPlatformSupportImpl::RendererWebKitPlatformSupportImpl()
     : clipboard_client_(new RendererClipboardClient),
       clipboard_(new webkit_glue::WebClipboardImpl(clipboard_client_.get())),
       mime_registry_(new RendererWebKitPlatformSupportImpl::MimeRegistry),
       sudden_termination_disables_(0),
       plugin_refresh_allowed_(true),
       shared_worker_repository_(new WebSharedWorkerRepositoryImpl) {
-  if (g_sandbox_enabled) {
+  if (g_sandbox_enabled && sandboxEnabled()) {
     sandbox_support_.reset(
         new RendererWebKitPlatformSupportImpl::SandboxSupport);
   } else {
     DVLOG(1) << "Disabling sandbox support for testing.";
   }
 }
 
 RendererWebKitPlatformSupportImpl::~RendererWebKitPlatformSupportImpl() {
 }
 
@@ skipping 575 matching lines @@
     const char16* characters,
     size_t length,
     size_t before_index,
     const WebKit::WebString& locale) {
   // Crash if WebKit calls this function when canHyphenate returns false.
   DCHECK(locale.isEmpty() || locale.equals("en-US"));
   DCHECK(hyphenator_.get());
   return hyphenator_->ComputeLastHyphenLocation(string16(characters, length),
                                                 before_index);
 }