cc: Never make a DirectRenderer in LayerTreeHostImpl.

cc/layers/picture_layer_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/picture_layer.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 221 matching lines @@
 
   layer->SetBounds(gfx::Size(0, 0));
   layer->SavePaintProperties();
   // Intentionally skipping Update since it would normally be skipped on
   // a layer with empty bounds.
 
   FakeImplTaskRunnerProvider impl_task_runner_provider;
 
   TestSharedBitmapManager shared_bitmap_manager;
   std::unique_ptr<FakeOutputSurface> output_surface =
-      FakeOutputSurface::CreateSoftware(
-          base::WrapUnique(new SoftwareOutputDevice));
+      FakeOutputSurface::CreateDelegatingSoftware();
   FakeLayerTreeHostImpl host_impl(LayerTreeSettings(),
                                   &impl_task_runner_provider,
                                   &shared_bitmap_manager, &task_graph_runner);
   host_impl.InitializeRenderer(output_surface.get());
   host_impl.CreatePendingTree();
   std::unique_ptr<FakePictureLayerImpl> layer_impl =
       FakePictureLayerImpl::Create(host_impl.pending_tree(), 1);
 
   layer->PushPropertiesTo(layer_impl.get());
   EXPECT_FALSE(layer_impl->CanHaveTilings());
@@ skipping 271 matching lines @@
   // Do a main frame, record the picture layers. The frame number has changed
   // non-monotonically.
   layer->SetNeedsDisplay();
   host2->Composite(base::TimeTicks::Now());
   EXPECT_EQ(3, layer->update_count());
   EXPECT_EQ(1, host2->source_frame_number());
 }
 
 }  // namespace
 }  // namespace cc