Don't try to scale embedded bitmaps.

src/ports/SkFontHost_FreeType.cpp

Index: src/ports/SkFontHost_FreeType.cpp
diff --git a/src/ports/SkFontHost_FreeType.cpp b/src/ports/SkFontHost_FreeType.cpp
index 7ac2083930a0cd020b00da7f90d802e47ab9b9ce..85f8ab94693ba3a7f0eadef6faf0184b9a3ab3b7 100644
--- a/src/ports/SkFontHost_FreeType.cpp
+++ b/src/ports/SkFontHost_FreeType.cpp
@@ -1301,7 +1301,9 @@ void SkScalerContext_FreeType::generateMetrics(SkGlyph* glyph) {
         }
     }
 
-    if (fFace->glyph->format == FT_GLYPH_FORMAT_BITMAP && fScaleY && fFace->size->metrics.y_ppem) {
+    // If the font isn't scalable, scale the metrics from the non-scalable strike.
+    // 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)));