Get rid of FX_SMALL_RECT.

core/fpdfapi/fpdf_font/fpdf_font.cpp

Index: core/fpdfapi/fpdf_font/fpdf_font.cpp
diff --git a/core/fpdfapi/fpdf_font/fpdf_font.cpp b/core/fpdfapi/fpdf_font/fpdf_font.cpp
index cb410b8d6845af86cf357b7963f2a42dc37b1178..fefe9365437bde1846c77ddb5dfa8599ee7cd4f9 100644
--- a/core/fpdfapi/fpdf_font/fpdf_font.cpp
+++ b/core/fpdfapi/fpdf_font/fpdf_font.cpp
@@ -21,10 +21,10 @@
 #include "core/fxge/include/fx_freetype.h"
 #include "third_party/base/stl_util.h"
 
-int16_t TT2PDF(int m, FXFT_Face face) {
+int TT2PDF(int m, FXFT_Face face) {
   int upm = FXFT_Get_Face_UnitsPerEM(face);
   if (upm == 0)
-    return static_cast<int16_t>(m);
+    return m;
   return (m * 1000 + upm / 2) / upm;
 }