For *ToFixed, in debug mode, assert that the value is in range.

src/ports/SkFontHost_mac.cpp

Index: src/ports/SkFontHost_mac.cpp
diff --git a/src/ports/SkFontHost_mac.cpp b/src/ports/SkFontHost_mac.cpp
index 69f660c8f1554c1626d0780e28a98888248a619c..7dba792863979de00549a750d0a934d79c5176d5 100644
--- a/src/ports/SkFontHost_mac.cpp
+++ b/src/ports/SkFontHost_mac.cpp
@@ -1042,8 +1042,8 @@ void SkScalerContext_Mac::generateMetrics(SkGlyph* glyph) {
                                    &cgGlyph, &cgAdvance, 1);
     }
     cgAdvance = CGSizeApplyAffineTransform(cgAdvance, fTransform);
-    glyph->fAdvanceX =  SkFloatToFixed_Check(cgAdvance.width);
-    glyph->fAdvanceY = -SkFloatToFixed_Check(cgAdvance.height);
+    glyph->fAdvanceX =  SkFloatToFixed(cgAdvance.width);
+    glyph->fAdvanceY = -SkFloatToFixed(cgAdvance.height);
 
     // The following produces skBounds in SkGlyph units (pixels, y down),
     // or returns early if skBounds would be empty.