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

cc/layers/ui_resource_layer_impl_unittest.cc

 // Copyright 2013 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 "cc/layers/append_quads_data.h"
 #include "cc/layers/ui_resource_layer_impl.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_client.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
@@ skipping 16 matching lines @@
     UIResourceId uid) {
   gfx::Rect visible_content_rect(layer_size);
   scoped_ptr<UIResourceLayerImpl> layer =
       UIResourceLayerImpl::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();
 
-  SkBitmap skbitmap;
-  skbitmap.setConfig(SkBitmap::kARGB_8888_Config,
-                     bitmap_size.width(),
-                     bitmap_size.height(),
-                     0,
-                     opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
-  skbitmap.allocPixels();
-  skbitmap.setImmutable();
-  UIResourceBitmap bitmap(skbitmap);
+  UIResourceBitmap bitmap(bitmap_size.width(), bitmap_size.height(), opaque);
 
   host_impl->CreateUIResource(uid, bitmap);
   layer->SetUIResourceId(uid);
 
   return layer.Pass();
 }
 
 void QuadSizeTest(scoped_ptr<UIResourceLayerImpl> layer,
                   size_t expected_quad_size) {
   MockQuadCuller quad_culler;
@@ skipping 87 matching lines @@
 
   layer = GenerateUIResourceLayer(
       &host_impl, bitmap_size, layer_size, skbitmap_opaque, uid);
   layer->SetContentsOpaque(true);
   expected_opaque_bounds = gfx::Rect(layer->bounds());
   OpaqueBoundsTest(layer.Pass(), expected_opaque_bounds);
 }
 
 }  // namespace
 }  // namespace cc