stop using SkXfermode -- use SkBlendMode instead

cc/layers/render_surface_unittest.cc

 // Copyright 2011 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/layer_impl.h"
 #include "cc/layers/render_pass_sink.h"
 #include "cc/layers/render_surface_impl.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/test/fake_compositor_frame_sink.h"
@@ skipping 81 matching lines @@
       FakeCompositorFrameSink::Create3d();
   FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
   std::unique_ptr<LayerImpl> root_layer =
       LayerImpl::Create(host_impl.active_tree(), 1);
 
   std::unique_ptr<LayerImpl> owning_layer =
       LayerImpl::Create(host_impl.active_tree(), 2);
   owning_layer->SetHasRenderSurface(true);
   ASSERT_TRUE(owning_layer->render_surface());
 
-  SkXfermode::Mode blend_mode = SkXfermode::kSoftLight_Mode;
+  SkBlendMode blend_mode = SkBlendMode::kSoftLight;
   owning_layer->test_properties()->blend_mode = blend_mode;
   RenderSurfaceImpl* render_surface = owning_layer->render_surface();
 
   root_layer->test_properties()->AddChild(std::move(owning_layer));
   host_impl.active_tree()->SetRootLayerForTesting(std::move(root_layer));
   host_impl.SetVisible(true);
   host_impl.InitializeRenderer(compositor_frame_sink.get());
   host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
   host_impl.active_tree()->UpdateDrawProperties(false /* update_lcd_text */);
 
@@ skipping 72 matching lines @@
   ASSERT_EQ(1u, pass_sink.RenderPasses().size());
   RenderPass* pass = pass_sink.RenderPasses()[0].get();
 
   EXPECT_EQ(RenderPassId(2, 0), pass->id);
   EXPECT_EQ(content_rect, pass->output_rect);
   EXPECT_EQ(origin, pass->transform_to_root_target);
 }
 
 }  // namespace
 }  // namespace cc