Revert of CertVerifyProcMac: Add Keychain re-ordering hack, check CRLsets in path pruning loop.

net/cert/test_keychain_search_list_mac.h

-// Copyright 2016 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.
-
-#ifndef NET_CERT_KEYCHAIN_SEARCH_LIST_MAC_H_
-#define NET_CERT_KEYCHAIN_SEARCH_LIST_MAC_H_
-
-#include <CoreServices/CoreServices.h>
-#include <Security/Security.h>
-
-#include "base/mac/scoped_cftyperef.h"
-#include "net/base/net_export.h"
-
-namespace net {
-
-class NET_EXPORT TestKeychainSearchList {
- public:
-  ~TestKeychainSearchList();
-
-  // Creates a TestKeychainSearchList, which will be used by HasInstance and
-  // GetInstance.
-  // Only one TestKeychainSearchList object may exist at a time, returns nullptr
-  // if one exists already.
-  static std::unique_ptr<TestKeychainSearchList> Create();
-
-  // Returns true if a TestKeychainSearchList currently exists.
-  static bool HasInstance();
-
-  // Returns the current TestKeychainSearchList instance, if any.
-  static TestKeychainSearchList* GetInstance();
-
-  // Copies the test keychain search list into |keychain_search_list|.
-  OSStatus CopySearchList(CFArrayRef* keychain_search_list) const;
-
-  // Adds |keychain| to the end of the test keychain search list.
-  void AddKeychain(SecKeychainRef keychain);
-
- private:
-  TestKeychainSearchList();
-
-  base::ScopedCFTypeRef<CFMutableArrayRef> scoped_keychain_search_list;
-};
-
-}  // namespace net
-
-#endif  // NET_CERT_KEYCHAIN_SEARCH_LIST_MAC_H_