fix warnings

git-svn-id: http://skia.googlecode.com/svn/trunk@1129 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleDraw.cpp b/samplecode/SampleDraw.cpp
index d34403e..39a64cf 100644
--- a/samplecode/SampleDraw.cpp
+++ b/samplecode/SampleDraw.cpp
@@ -27,27 +27,27 @@
     SkRect r;
 
     r.set(10, 10, 14, 14);
-    r.offset(0.25, 0.3333);
+    r.offset(0.25f, 0.3333f);
     test_strokerect(canvas, r);
     canvas->translate(0, 20);
     
     r.set(10, 10, 14.5f, 14.5f);
-    r.offset(0.25, 0.3333);
+    r.offset(0.25f, 0.3333f);
     test_strokerect(canvas, r);
     canvas->translate(0, 20);
     
     r.set(10, 10, 14.5f, 20);
-    r.offset(0.25, 0.3333);
+    r.offset(0.25f, 0.3333f);
     test_strokerect(canvas, r);
     canvas->translate(0, 20);
     
     r.set(10, 10, 20, 14.5f);
-    r.offset(0.25, 0.3333);
+    r.offset(0.25f, 0.3333f);
     test_strokerect(canvas, r);
     canvas->translate(0, 20);
     
     r.set(10, 10, 20, 20);
-    r.offset(0.25, 0.3333);
+    r.offset(0.25f, 0.3333f);
     test_strokerect(canvas, r);
     canvas->translate(0, 20);