[PATCH v4 5/7] MdeModulePkg/DxeHttpLib: Use BaseLib api AsciiToUpper

[Shenglei Zhang <shenglei.zhang@intel.com>]

Substitute HttpIoCharToUpper with AsciiToUpper which is a public function
with the same effect. And remove the implement of HttpIoCharToUpper.
https://bugzilla.tianocore.org/show_bug.cgi?id=1369

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
---
 MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c | 23 +-------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
index 2fc3da8a2d..36f66a2708 100644
--- a/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
+++ b/MdeModulePkg/Library/DxeHttpLib/DxeHttpLib.c
@@ -898,27 +898,6 @@ typedef struct {
   UINTN                         CurrentChunkParsedSize;
 } HTTP_BODY_PARSER;
 
-/**
-
-  Convert an Ascii char to its uppercase.
-
-  @param[in]       Char           Ascii character.
-
-  @return          Uppercase value of the input Char.
-
-**/
-CHAR8
-HttpIoCharToUpper (
-  IN      CHAR8                    Char
-  )
-{
-  if (Char >= 'a' && Char <= 'z') {
-    return  Char - ('a' - 'A');
-  }
-
-  return Char;
-}
-
 /**
   Convert an hexadecimal char to a value of type UINTN.
 
@@ -936,7 +915,7 @@ HttpIoHexCharToUintn (
     return Char - '0';
   }
 
-  return (10 + HttpIoCharToUpper (Char) - 'A');
+  return (10 + AsciiToUpper (Char) - 'A');
 }
 
 /**
-- 
2.18.0.windows.1