use SkColorType instead of (deprecated) SkBitmap::Config for copyTo

cc/layers/nine_patch_layer_impl_unittest.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/containers/hash_tables.h"
 #include "cc/layers/append_quads_data.h"
 #include "cc/layers/nine_patch_layer_impl.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_client.h"
@@ skipping 36 matching lines @@
   FakeUIResourceLayerTreeHostImpl host_impl(&proxy);
   scoped_ptr<NinePatchLayerImpl> layer =
       NinePatchLayerImpl::Create(host_impl.active_tree(), 1);
   layer->draw_properties().visible_content_rect = visible_content_rect;
   layer->SetBounds(layer_size);
   layer->SetContentBounds(layer_size);
   layer->CreateRenderSurface();
   layer->draw_properties().render_target = layer.get();
 
   UIResourceId uid = 1;
-  SkBitmap skbitmap;
-  skbitmap.setConfig(
-      SkBitmap::kARGB_8888_Config, bitmap_size.width(), bitmap_size.height());
-  skbitmap.allocPixels();
-  skbitmap.setImmutable();
-  UIResourceBitmap bitmap(skbitmap);
+  UIResourceBitmap bitmap(bitmap_size.width(), bitmap_size.height());
 
   host_impl.CreateUIResource(uid, bitmap);
   layer->SetUIResourceId(uid);
   layer->SetImageBounds(bitmap_size);
   layer->SetLayout(aperture_rect, border, fill_center);
   AppendQuadsData data;
   layer->AppendQuads(&quad_culler, &data);
 
   // Verify quad rects
   const QuadList& quads = quad_culler.quad_list();
@@ skipping 78 matching lines @@
   NinePatchLayerLayoutTest(bitmap_size,
                            aperture_rect,
                            layer_size,
                            border,
                            fill_center,
                            expected_quad_size);
 }
 
 }  // namespace
 }  // namespace cc