Fixed some fixed point build Windows compiler complaints

http://codereview.appspot.com/6197063/



git-svn-id: http://skia.googlecode.com/svn/trunk@3867 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SamplePolyToPoly.cpp b/samplecode/SamplePolyToPoly.cpp
index dbda4da..c12b402 100644
--- a/samplecode/SamplePolyToPoly.cpp
+++ b/samplecode/SamplePolyToPoly.cpp
@@ -113,7 +113,9 @@
         float y = D/2 - (fm.fAscent + fm.fDescent)/2;
         SkString str;
         str.appendS32(count);
-        canvas->drawText(str.c_str(), str.size(), x, y, *paint);
+        canvas->drawText(str.c_str(), str.size(),
+                         x, SkFloatToScalar(y),
+                         *paint);
 
         canvas->restore();
     }