Revert of Refactoring of Cast-related crypto code

extensions/common/cast/cast_cert_validator.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 "extensions/common/cast/cast_cert_validator.h"
-
-namespace extensions {
-namespace core_api {
-namespace cast_crypto {
-
-VerificationResult::VerificationResult()
-    : VerificationResult("", ERROR_NONE, 0) {
-}
-
-VerificationResult::VerificationResult(const std::string& in_error_message,
-                                       ErrorType in_error_type)
-    : VerificationResult(in_error_message, in_error_type, 0) {
-}
-
-VerificationResult::VerificationResult(const std::string& in_error_message,
-                                       ErrorType in_error_type,
-                                       int in_error_code)
-    : error_type(in_error_type),
-      error_message(in_error_message),
-      library_error_code(in_error_code) {
-}
-
-}  // namespace cast_crypto
-}  // namespace core_api
-}  // namespace extensions