Revert "Revert of add colortable support to imagegenerator (https://codereview.chromium.org/3044430…

src/utils/SkCanvasStateUtils.cpp

Index: src/utils/SkCanvasStateUtils.cpp
diff --git a/src/utils/SkCanvasStateUtils.cpp b/src/utils/SkCanvasStateUtils.cpp
index 64f62dd8b190fb507da998294b489438157dd0c7..eaee61b5e829a6534c87f0180b7f4c1856e7a7b0 100644
--- a/src/utils/SkCanvasStateUtils.cpp
+++ b/src/utils/SkCanvasStateUtils.cpp
@@ -291,8 +291,7 @@ static SkCanvas* create_canvas_from_canvas_layer(const SkCanvasLayerState& layer
 
     bitmap.installPixels(SkImageInfo::Make(layerState.width, layerState.height,
                                            colorType, kPremul_SkAlphaType),
-                         layerState.raster.pixels, layerState.raster.rowBytes,
-                         NULL, NULL);
+                         layerState.raster.pixels, layerState.raster.rowBytes);
 
     SkASSERT(!bitmap.empty());
     SkASSERT(!bitmap.isNull());