Move core/fpdfapi/fpdf_font to core/fpdfapi/font

core/fpdfapi/fpdf_font/fpdf_font_unittest.cpp

-// Copyright 2015 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/fpdfapi/fpdf_font/font_int.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-TEST(fpdf_font, StringToCode) {
-  EXPECT_EQ(0u, CPDF_ToUnicodeMap::StringToCode(""));
-  EXPECT_EQ(194u, CPDF_ToUnicodeMap::StringToCode("<c2"));
-  EXPECT_EQ(162u, CPDF_ToUnicodeMap::StringToCode("<A2"));
-  EXPECT_EQ(2802u, CPDF_ToUnicodeMap::StringToCode("<Af2"));
-  EXPECT_EQ(12u, CPDF_ToUnicodeMap::StringToCode("12"));
-  EXPECT_EQ(128u, CPDF_ToUnicodeMap::StringToCode("128"));
-}
-
-TEST(fpdf_font, StringToWideString) {
-  EXPECT_EQ(L"", CPDF_ToUnicodeMap::StringToWideString(""));
-  EXPECT_EQ(L"", CPDF_ToUnicodeMap::StringToWideString("1234"));
-
-  EXPECT_EQ(L"", CPDF_ToUnicodeMap::StringToWideString("<c2"));
-
-  CFX_WideString res = L"\xc2ab";
-  EXPECT_EQ(res, CPDF_ToUnicodeMap::StringToWideString("<c2ab"));
-  EXPECT_EQ(res, CPDF_ToUnicodeMap::StringToWideString("<c2abab"));
-  EXPECT_EQ(res, CPDF_ToUnicodeMap::StringToWideString("<c2ab 1234"));
-
-  res += L"\xfaab";
-  EXPECT_EQ(res, CPDF_ToUnicodeMap::StringToWideString("<c2abFaAb"));
-}