AI 143523: use SkScalarToCompareType macro in quickreject, so we don't mangle the numbers when we have fast floats

Automated import of CL 143523
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 00461b0..16c94c2 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -943,8 +943,8 @@
         return true;
     }
     
-    SkScalarCompareType userT = SkScalarAs2sCompliment(top);
-    SkScalarCompareType userB = SkScalarAs2sCompliment(bottom);
+    SkScalarCompareType userT = SkScalarToCompareType(top);
+    SkScalarCompareType userB = SkScalarToCompareType(bottom);
     
     // check for invalid user Y coordinates (i.e. empty)
     if (userT >= userB) {