Split fpdf_parser_objects.cpp into per-class .cpp/.h files.

core/src/fpdfdoc/doc_basic_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 "core/include/fpdfdoc/fpdf_doc.h"
 
 #include <memory>
 #include <vector>
 
+#include "core/include/fpdfapi/cpdf_string.h"
+#include "core/include/fpdfapi/cpdf_name.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>>;
 }
 
@@ skipping 138 matching lines @@
   file_spec2.SetFileName(test_data.input);
   // Check internal object value.
   file_name = dict_obj->GetUnicodeTextBy("F");
   EXPECT_TRUE(file_name.Equal(test_data.expected));
   file_name = dict_obj->GetUnicodeTextBy("UF");
   EXPECT_TRUE(file_name.Equal(test_data.expected));
   // Check we can get the file name back.
   EXPECT_TRUE(file_spec2.GetFileName(&file_name));
   EXPECT_TRUE(file_name.Equal(test_data.input));
 }