Revert of Revert of stop calling SkScalarDiv (patchset #1 id:1 of https://codereview.chromium.org/1138263002/)

Reason for revert:
android patched, blink has rolled

Original issue's description:
> Revert of stop calling SkScalarDiv (patchset #4 id:60001 of https://codereview.chromium.org/1135053002/)
>
> Reason for revert:
> need to wait for Blink roll (and patch android)
>
> Original issue's description:
> > stop calling SkScalarDiv
> >
> > BUG=skia:
> > TBR=
> >
> > Committed: https://skia.googlesource.com/skia/+/67d71c898249a7af3523b16c6a69895a63bfae0a
>
> TBR=
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/2629697933b5cc975e45d2a45c48f803fc6cbcec

TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1135693003
diff --git a/src/ports/SkFontHost_FreeType.cpp b/src/ports/SkFontHost_FreeType.cpp
index 0a69b43..5c53b9d 100644
--- a/src/ports/SkFontHost_FreeType.cpp
+++ b/src/ports/SkFontHost_FreeType.cpp
@@ -1198,8 +1198,7 @@
     // This means do not try to scale embedded bitmaps; only scale bitmaps in bitmap only fonts.
     if (!FT_IS_SCALABLE(fFace) && fScaleY && fFace->size->metrics.y_ppem) {
         // NOTE: both dimensions are scaled by y_ppem. this is WAI.
-        scaleGlyphMetrics(*glyph, SkScalarDiv(SkFixedToScalar(fScaleY),
-                                              SkIntToScalar(fFace->size->metrics.y_ppem)));
+        scaleGlyphMetrics(*glyph, SkFixedToScalar(fScaleY) / fFace->size->metrics.y_ppem);
     }
 
 #ifdef ENABLE_GLYPH_SPEW