remove unused (and undefined) SkColorSpace parameter.



git-svn-id: http://skia.googlecode.com/svn/trunk@6427 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleFatBits.cpp b/samplecode/SampleFatBits.cpp
index e88a1d5..eac7136 100644
--- a/samplecode/SampleFatBits.cpp
+++ b/samplecode/SampleFatBits.cpp
@@ -91,10 +91,10 @@
         SkImage::Info info = {
             width, height, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType
         };
-        fMinSurface.reset(SkSurface::NewRaster(info, NULL));
+        fMinSurface.reset(SkSurface::NewRaster(info));
         info.fWidth *= zoom;
         info.fHeight *= zoom;
-        fMaxSurface.reset(SkSurface::NewRaster(info, NULL));
+        fMaxSurface.reset(SkSurface::NewRaster(info));
     }
 
     void drawBG(SkCanvas*);