remove unused (and undefined) SkColorSpace parameter.



git-svn-id: http://skia.googlecode.com/svn/trunk@6427 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/image/SkImagePriv.cpp b/src/image/SkImagePriv.cpp
index e7a244a..e10a44c 100644
--- a/src/image/SkImagePriv.cpp
+++ b/src/image/SkImagePriv.cpp
@@ -108,8 +108,7 @@
     } else {
         bm.lockPixels();
         if (bm.getPixels()) {
-            image = SkImage::NewRasterCopy(info, NULL, bm.getPixels(),
-                                           bm.rowBytes());
+            image = SkImage::NewRasterCopy(info, bm.getPixels(), bm.rowBytes());
         }
         bm.unlockPixels();
     }