guard references to SkColorTable

Bug: skia:6828
Change-Id: I0c8c78e70b118f51cb59dc45675e4ddcd4776108
Reviewed-on: https://skia-review.googlesource.com/24260
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index ad9752d..cf8d4ba 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1506,9 +1506,9 @@
     SkAlphaType alphaType = kPremul_SkAlphaType;
     (void)SkColorTypeValidateAlphaType(fColorType, alphaType, &alphaType);
 
-    dst->allocPixels(SkImageInfo::Make(size.width(), size.height(),
-                                       fColorType, alphaType, fColorSpace),
-                     nullptr/*colortable*/, SkBitmap::kZeroPixels_AllocFlag);
+    dst->allocPixelsFlags(SkImageInfo::Make(size.width(), size.height(),
+                                            fColorType, alphaType, fColorSpace),
+                          SkBitmap::kZeroPixels_AllocFlag);
     SkCanvas canvas(*dst);
     return src.draw(&canvas);
 }