Revert of Revert of stop calling SkScalarDiv

src/utils/SkNinePatch.cpp

Index: src/utils/SkNinePatch.cpp
diff --git a/src/utils/SkNinePatch.cpp b/src/utils/SkNinePatch.cpp
index 4e0d1d1a39b3a3a923e55723ccfcbce97ffdb493..ce8d4801c60d398ba77eb83c58f8954237fbc99e 100644
--- a/src/utils/SkNinePatch.cpp
+++ b/src/utils/SkNinePatch.cpp
@@ -161,7 +161,7 @@
         if (bounds.width() >= fixed)
             stretchX = (bounds.width() - fixed) / stretchSize;
         else // reuse stretchX, but keep it negative as a signal
-            stretchX = SkScalarDiv(-bounds.width(), fixed);
+            stretchX = -bounds.width() / fixed;
     }
 
     if (numYStretch > 0) {
@@ -173,7 +173,7 @@
         if (bounds.height() >= fixed)
             stretchY = (bounds.height() - fixed) / stretchSize;
         else // reuse stretchX, but keep it negative as a signal
-            stretchY = SkScalarDiv(-bounds.height(), fixed);
+            stretchY = -bounds.height() / fixed;
     }
 
 #if 0