stop using SkBitmap::Config

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "effects/GrBicubicEffect.h"
@@ skipping 1358 matching lines @@
         SkShader::TileMode tileModes[2] = { params.getTileModeX(), params.getTileModeY() };
         effect.reset(GrBicubicEffect::Create(texture, SkMatrix::I(), tileModes));
     } else {
         effect.reset(GrSimpleTextureEffect::Create(texture, SkMatrix::I(), params));
     }
 
     // Construct a GrPaint by setting the bitmap texture as the first effect and then configuring
     // the rest from the SkPaint.
     GrPaint grPaint;
     grPaint.addColorEffect(effect);
-    bool alphaOnly = !(SkBitmap::kA8_Config == bitmap.config());
+    bool alphaOnly = !(kAlpha_8_SkColorType == bitmap.colorType());
     GrColor grColor = (alphaOnly) ? SkColor2GrColorJustAlpha(paint.getColor()) :
                                     SkColor2GrColor(paint.getColor());
     SkPaint2GrPaintNoShader(this->context(), paint, grColor, false, &grPaint);
 
     fContext->drawRectToRect(grPaint, dstRect, paintRect, NULL);
 }
 
 static bool filter_texture(SkBaseDevice* device, GrContext* context,
                            GrTexture* texture, const SkImageFilter* filter,
                            int w, int h, const SkImageFilter::Context& ctx,
@@ skipping 612 matching lines @@
         GrCachedLayer* layer = fContext->getLayerCache()->findLayerOrCreate(picture, i);
 
         if (NULL != layer->getTexture()) {
             fContext->unlockScratchTexture(layer->getTexture());
             layer->setTexture(NULL);
         }
     }
 
     return true;
 }