Ignore non-ASCII headers in the mimeHandlerPrivate API.

extensions/browser/guest_view/mime_handler_view/mime_handler_view_browsertest.cc

 // Copyright 2014 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 "base/base_paths.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/test/browser_test_utils.h"
@@ skipping 49 matching lines @@
   RunTest("test_embedded.html");
 }
 
 IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, Iframe) {
   RunTest("test_iframe.html");
 }
 
 IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, Abort) {
   RunTest("testAbort.csv");
 }
+
+IN_PROC_BROWSER_TEST_F(MimeHandlerViewTest, NonAsciiHeaders) {
+  RunTest("testNonAsciiHeaders.csv");
+}