stop using SkXfermode -- use SkBlendMode instead

cc/layers/solid_color_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 "cc/layers/solid_color_layer_impl.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 83 matching lines @@
   AppendQuadsData data;
   layer->AppendQuads(render_pass.get(), &data);
 
   ASSERT_EQ(render_pass->quad_list.size(), 1U);
   EXPECT_EQ(opacity,
             SolidColorDrawQuad::MaterialCast(render_pass->quad_list.front())
                 ->shared_quad_state->opacity);
 }
 
 TEST(SolidColorLayerImplTest, VerifyCorrectBlendModeInQuad) {
-  const SkXfermode::Mode blend_mode = SkXfermode::kMultiply_Mode;
+  const SkBlendMode blend_mode = SkBlendMode::kMultiply;
 
   std::unique_ptr<RenderPass> render_pass = RenderPass::Create();
 
   gfx::Size layer_size = gfx::Size(100, 100);
 
   FakeImplTaskRunnerProvider task_runner_provider;
   TestTaskGraphRunner task_graph_runner;
   FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
   std::unique_ptr<SolidColorLayerImpl> layer =
       SolidColorLayerImpl::Create(host_impl.active_tree(), 1);
@@ skipping 125 matching lines @@
     LayerTestCommon::VerifyQuadsAreOccluded(
         impl.quad_list(), occluded, &partially_occluded_count);
     // 4 quads are completely occluded, 8 are partially occluded.
     EXPECT_EQ(16u - 4u, impl.quad_list().size());
     EXPECT_EQ(8u, partially_occluded_count);
   }
 }
 
 }  // namespace
 }  // namespace cc