cc: Get rid of non-delegated rendering in most cc unit tests.

cc/layers/ui_resource_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/ui_resource_layer.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/scoped_ui_resource.h"
 #include "cc/test/fake_layer_tree_host.h"
@@ skipping 27 matching lines @@
       return ui_resource_holder_->id();
     return 0;
   }
 
  protected:
   TestUIResourceLayer() : UIResourceLayer() { SetIsDrawable(true); }
   ~TestUIResourceLayer() override {}
 };
 
 class UIResourceLayerTest : public testing::Test {
- public:
-  UIResourceLayerTest() : fake_client_(FakeLayerTreeHostClient::DIRECT_3D) {}
-
  protected:
   void SetUp() override {
     layer_tree_host_ =
         FakeLayerTreeHost::Create(&fake_client_, &task_graph_runner_);
     layer_tree_host_->InitializeSingleThreaded(
         &fake_client_, base::ThreadTaskRunnerHandle::Get(), nullptr);
   }
 
   void TearDown() override {
     Mock::VerifyAndClearExpectations(layer_tree_host_.get());
@@ skipping 73 matching lines @@
 
   test_layer->SetBitmap(bitmap);
   ASSERT_FALSE(bitmap.pixelRef()->unique());
 
   test_layer->SetUIResourceId(0);
   EXPECT_TRUE(bitmap.pixelRef()->unique());
 }
 
 }  // namespace
 }  // namespace cc