Enabled CORS for chrome://resources.

content/public/browser/url_data_source.cc

 // Copyright (c) 2013 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/public/browser/url_data_source.h"
 
 #include "content/browser/webui/url_data_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/url_constants.h"
 #include "net/url_request/url_request.h"
@@ skipping 38 matching lines @@
   if (request->url().SchemeIs(kChromeDevToolsScheme) ||
       request->url().SchemeIs(kChromeUIScheme))
     return true;
   return false;
 }
 
 bool URLDataSource::ShouldServeMimeTypeAsContentTypeHeader() const {
   return false;
 }
 
+std::string URLDataSource::GetAccessControlAllowOriginHeaderForOrigin(
+    const std::string& origin) const {
+  return "";

[Tom Sepez, 2014/10/03 17:02:45]

nit:  I thought the preferred way of returning an empty string was to return
std::string().

[dzhioev (left Google), 2014/10/03 19:55:07]

Right. Done.

+}
+
 }  // namespace content