[content shell] allow universal access from file URLs in layout tests

content/browser/web_contents/web_contents_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/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 507 matching lines @@
   prefs.flash_stage3d_enabled =
       GpuProcessHost::gpu_enabled() &&
       !command_line.HasSwitch(switches::kDisableFlashStage3d);
 
   prefs.gl_multisampling_enabled =
       !command_line.HasSwitch(switches::kDisableGLMultisampling);
   prefs.privileged_webgl_extensions_enabled =
       command_line.HasSwitch(switches::kEnablePrivilegedWebGLExtensions);
   prefs.site_specific_quirks_enabled =
       !command_line.HasSwitch(switches::kDisableSiteSpecificQuirks);
+  prefs.allow_universal_access_from_file_urls =
+      command_line.HasSwitch(switches::kAllowUniversalAccessFromFiles);
   prefs.allow_file_access_from_file_urls =
       command_line.HasSwitch(switches::kAllowFileAccessFromFiles);
   prefs.show_composited_layer_borders =
       command_line.HasSwitch(switches::kShowCompositedLayerBorders);
   prefs.show_composited_layer_tree =
       command_line.HasSwitch(switches::kShowCompositedLayerTree);
   prefs.show_fps_counter =
       command_line.HasSwitch(switches::kShowFPSCounter);
   prefs.accelerated_compositing_for_overflow_scroll_enabled =
       command_line.HasSwitch(
@@ skipping 2864 matching lines @@
   }
 }
 
 content::BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() {
   return browser_plugin_guest_.get();
 }
 
 content::BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() {
   return browser_plugin_embedder_.get();
 }