Don't set MODE_DEFAULT when adding HPKP header.

chrome_frame/test/net/fake_external_tab.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 "chrome_frame/test/net/fake_external_tab.h"
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <exdisp.h>
 #include <Winsock2.h>
@@ skipping 236 matching lines @@
     // See http://msdn.microsoft.com/en-us/library/aa385328(VS.85).aspx
     "URLRequestTest.DoNotSaveCookies",
     "URLRequestTest.DelayedCookieCallback",
 
     // TODO(ananta): This test has been consistently failing. Disabling it for
     // now.
     "URLRequestTestHTTP.GetTest_NoCache",
 
     // These tests use HTTPS, and IE's trust store does not have the test
     // certs. So these tests time out waiting for user input. The
-    // functionality they test (HTTP Strict Transport Security) does not
-    // work in Chrome Frame anyway.
+    // functionality they test (HTTP Strict Transport Security and
+    // HTTP-based Public Key Pinning) does not work in Chrome Frame anyway.
     "URLRequestTestHTTP.ProcessSTS",
     "URLRequestTestHTTP.ProcessSTSOnce",
+    "URLRequestTestHTTP.ProcessSTSAndPKP",
 
     // These tests have been disabled as the Chrome cookie policies don't make
     // sense or have not been implemented for the host network stack.
     "URLRequestTest.DoNotSaveCookies_ViaPolicy",
     "URLRequestTest.DoNotSendCookies_ViaPolicy",
     "URLRequestTest.DoNotSaveCookies_ViaPolicy_Async",
     "URLRequestTest.CookiePolicy_ForceSession",
     "URLRequestTest.DoNotSendCookies",
     "URLRequestTest.DoNotSendCookies_ViaPolicy_Async",
     "URLRequestTest.CancelTest_During_OnGetCookies",
@@ skipping 699 matching lines @@
   content::InitializeSandboxInfo(&sandbox_info);
   FakeMainDelegate delegate;
   content::ContentMain(
       reinterpret_cast<HINSTANCE>(GetModuleHandle(NULL)),
       &sandbox_info,
       &delegate);
 
   // Note:  In debug builds, we ExitProcess during PostDestroyThreads.
   return g_test_suite->test_result();
 }