Correct the names of the FX_SAFE_* typedefs.

core/include/fxcrt/fx_system.h

Index: core/include/fxcrt/fx_system.h
diff --git a/core/include/fxcrt/fx_system.h b/core/include/fxcrt/fx_system.h
index 391380304c936a302a77d2d5fef41e3110687e8e..fe54e5ce82d24de1a2f9451247bc700dd51dd04b 100644
--- a/core/include/fxcrt/fx_system.h
+++ b/core/include/fxcrt/fx_system.h
@@ -278,7 +278,7 @@ int			FXSYS_round(FX_FLOAT f);
 
 #include "../../../third_party/numerics/safe_math.h"
 typedef base::CheckedNumeric<FX_DWORD> 		FX_SAFE_DWORD;

[jun_fang, 2014/07/31 18:58:41]

Can we raise one issue to change previous safe-check to use these common safe
variables? We don't need to include "../../../third_party/numerics/safe_math.h"
everywhere if we use these common safe variables.

[palmer, 2014/07/31 19:05:03]

Acknowledged.

-typedef base::CheckedNumeric<FX_INT32> 		FX_SAFE_INT;
+typedef base::CheckedNumeric<FX_INT32> 		FX_SAFE_INT32;

[jun_fang, 2014/07/31 18:58:40]

It's not aligned with FX_SAFE_DWORD and FX_SAFE_SIZET. Remove one blank?

[palmer, 2014/07/31 19:05:03]

Fixed.

(This is why it's a good idea to always uses spaces instead of tabs.)

(Someday we'll want to run all this code through clang-format.)

 typedef base::CheckedNumeric<size_t>            FX_SAFE_SIZET;

[Tom Sepez, 2014/07/31 18:58:38]

While yer at it, make this one FX_SAFE_SIZE_T.  Per my comment in
https://codereview.chromium.org/419063002/, if someone were to invent a type
sizet distinct from size_t and try to use it with FX_SAFE_SIZET ... 

[jun_fang, 2014/07/31 18:58:41]

Tom suggests to change FX_SAFE_SIZET to FX_SAFE_SIZE_T. 

[palmer, 2014/07/31 19:05:03]

Done.

[palmer, 2014/07/31 19:05:03]

Done.

 #if defined(__clang__) || _MSC_VER >= 1700
 #define FX_FINAL final