Remove typdefs for pointer types in fx_system.h

core/src/fxcrt/fx_basic_bstring_unittest.cpp

 // Copyright 2014 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 "testing/gtest/include/gtest/gtest.h"
 #include "../../../testing/fx_string_testhelpers.h"
 #include "../../include/fxcrt/fx_basic.h"
 
 TEST(fxcrt, ByteStringOperatorSubscript) {
     // CFX_ByteString includes the NUL terminator for non-empty strings.
@@ skipping 260 matching lines @@
   EXPECT_EQ(null_string, empty_string);
 
   CFX_ByteStringC assigned_null_string("initially not NULL");
   assigned_null_string = null_string;
   EXPECT_EQ(assigned_null_string.GetPtr(), nullptr);
   EXPECT_EQ(assigned_null_string.GetLength(), 0);
   EXPECT_TRUE(assigned_null_string.IsEmpty());
   EXPECT_EQ(null_string, assigned_null_string);
 
   CFX_ByteStringC assigned_nullptr_string("initially not NULL");
-  assigned_nullptr_string = (FX_LPCSTR)nullptr;
+  assigned_nullptr_string = (const FX_CHAR*)nullptr;
   EXPECT_EQ(assigned_nullptr_string.GetPtr(), nullptr);
   EXPECT_EQ(assigned_nullptr_string.GetLength(), 0);
   EXPECT_TRUE(assigned_nullptr_string.IsEmpty());
   EXPECT_EQ(null_string, assigned_nullptr_string);
 
   CFX_ByteStringC non_null_string("a");
   EXPECT_NE(null_string, non_null_string);
 }
 
 TEST(fxcrt, ByteStringConcatInPlace) {
@@ skipping 304 matching lines @@
     const char* c_string2 = "hellp";
     const char* c_string3 = "hellod";
     EXPECT_TRUE(byte_string_c != c_string1);
     EXPECT_TRUE(byte_string_c != c_string2);
     EXPECT_TRUE(byte_string_c != c_string3);
 
     EXPECT_TRUE(c_string1 != byte_string_c);
     EXPECT_TRUE(c_string2 != byte_string_c);
     EXPECT_TRUE(c_string3 != byte_string_c);
 }