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

cc/layers/texture_layer_unittest.cc

Index: cc/layers/texture_layer_unittest.cc
diff --git a/cc/layers/texture_layer_unittest.cc b/cc/layers/texture_layer_unittest.cc
index 9c9fe93be553bc3692a2bfe6f3278860b87eeabf..c58f794a39e827ba04ed8cc89891b1dffa03caad 100644
--- a/cc/layers/texture_layer_unittest.cc
+++ b/cc/layers/texture_layer_unittest.cc
@@ -205,9 +205,7 @@ struct CommonMailboxObjects {
 class TextureLayerTest : public testing::Test {
  public:
   TextureLayerTest()
-      : fake_client_(
-            FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)),
-        output_surface_(FakeOutputSurface::Create3d()),
+      : output_surface_(FakeOutputSurface::CreateDelegating3d()),
         host_impl_(&task_runner_provider_,
                    &shared_bitmap_manager_,
                    &task_graph_runner_),
@@ -841,10 +839,6 @@ SINGLE_AND_MULTI_THREAD_DIRECT_RENDERER_TEST_F(
 
 class TextureLayerImplWithMailboxTest : public TextureLayerTest {
  protected:
-  TextureLayerImplWithMailboxTest()
-      : fake_client_(
-          FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)) {}
-
   void SetUp() override {
     TextureLayerTest::SetUp();
     layer_tree_host_ =