| Index: base/files/file_path.cc
 | 
| diff --git a/base/files/file_path.cc b/base/files/file_path.cc
 | 
| index 2c199e131a56ee1976dded1dd25af158ac1c6252..ca0d1d1bb951c32118c1c981c75c2f62a6eda03f 100644
 | 
| --- a/base/files/file_path.cc
 | 
| +++ b/base/files/file_path.cc
 | 
| @@ -693,6 +693,10 @@ bool FilePath::ReadFromPickle(PickleIterator* iter) {
 | 
|  
 | 
|  int FilePath::CompareIgnoreCase(StringPieceType string1,
 | 
|                                  StringPieceType string2) {
 | 
| +  static decltype(::CharUpperW)* const char_upper_api =
 | 
| +      reinterpret_cast<decltype(::CharUpperW)*>(
 | 
| +          ::GetProcAddress(::GetModuleHandle(L"user32.dll"), "CharUpperW"));
 | 
| +  CHECK(char_upper_api);
 | 
|    // Perform character-wise upper case comparison rather than using the
 | 
|    // fully Unicode-aware CompareString(). For details see:
 | 
|    // http://blogs.msdn.com/michkap/archive/2005/10/17/481600.aspx
 | 
| @@ -702,9 +706,9 @@ int FilePath::CompareIgnoreCase(StringPieceType string1,
 | 
|    StringPieceType::const_iterator string2end = string2.end();
 | 
|    for ( ; i1 != string1end && i2 != string2end; ++i1, ++i2) {
 | 
|      wchar_t c1 =
 | 
| -        (wchar_t)LOWORD(::CharUpperW((LPWSTR)(DWORD_PTR)MAKELONG(*i1, 0)));
 | 
| +        (wchar_t)LOWORD(char_upper_api((LPWSTR)(DWORD_PTR)MAKELONG(*i1, 0)));
 | 
|      wchar_t c2 =
 | 
| -        (wchar_t)LOWORD(::CharUpperW((LPWSTR)(DWORD_PTR)MAKELONG(*i2, 0)));
 | 
| +        (wchar_t)LOWORD(char_upper_api((LPWSTR)(DWORD_PTR)MAKELONG(*i2, 0)));
 | 
|      if (c1 < c2)
 | 
|        return -1;
 | 
|      if (c1 > c2)
 | 
| 
 |