Remove CPDF_Object::Release() in favor of direct delete

core/fpdfdoc/cpdf_filespec_unittest.cpp

 // Copyright 2016 PDFium 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 <memory>
 #include <vector>
 
 #include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h"
 #include "core/fpdfapi/fpdf_parser/cpdf_name.h"
 #include "core/fpdfapi/fpdf_parser/cpdf_string.h"
 #include "core/fpdfdoc/cpdf_filespec.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/test_support.h"
 
 namespace {
 
-using ScopedObj = std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>>;
-using ScopedDict =
-    std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>>;
+using ScopedObj = std::unique_ptr<CPDF_Object>;
+using ScopedDict = std::unique_ptr<CPDF_Dictionary>;
 }
 
 TEST(cpdf_filespec, EncodeDecodeFileName) {
   std::vector<pdfium::NullTermWstrFuncTestData> test_data = {
     // Empty src string.
     {L"", L""},
     // only file name.
     {L"test.pdf", L"test.pdf"},
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
     // With drive identifier.
@@ skipping 130 matching lines @@
   file_spec2.SetFileName(test_data.input);
   // Check internal object value.
   file_name = dict_obj->GetUnicodeTextFor("F");
   EXPECT_TRUE(file_name == test_data.expected);
   file_name = dict_obj->GetUnicodeTextFor("UF");
   EXPECT_TRUE(file_name == test_data.expected);
   // Check we can get the file name back.
   EXPECT_TRUE(file_spec2.GetFileName(&file_name));
   EXPECT_TRUE(file_name == test_data.input);
 }