cc: Remove unused proto conversion code.

blimp/client/test/compositor/blimp_compositor_with_fake_host.cc

 // Copyright 2016 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 "blimp/client/test/compositor/blimp_compositor_with_fake_host.h"
 
 #include "cc/animation/animation_host.h"
 #include "cc/proto/compositor_message.pb.h"
 #include "cc/test/fake_proxy.h"
 
@@ skipping 21 matching lines @@
 std::unique_ptr<cc::proto::CompositorMessage>
 BlimpCompositorWithFakeHost::CreateFakeUpdate(
     scoped_refptr<cc::Layer> root_layer) {
   std::unique_ptr<cc::proto::CompositorMessage> message =
       base::MakeUnique<cc::proto::CompositorMessage>();
   message->set_client_state_update_ack(false);
   cc::LayerTree* layer_tree = host()->GetLayerTree();
   layer_tree->SetRootLayer(root_layer);
   cc::proto::LayerTree* layer_tree_proto =
       message->mutable_layer_tree_host()->mutable_layer_tree();
-  layer_tree->ToProtobuf(layer_tree_proto, true);
+  layer_tree->ToProtobuf(layer_tree_proto);
   return message;
 }
 
 std::unique_ptr<cc::LayerTreeHostInProcess>
 BlimpCompositorWithFakeHost::CreateLayerTreeHost() {
   DCHECK(animation_host());
 
   cc::LayerTreeSettings settings;
   std::unique_ptr<cc::FakeLayerTreeHost> host = cc::FakeLayerTreeHost::Create(
       &fake_client_, &task_graph_runner_, animation_host(), settings,
       cc::CompositorMode::THREADED);
   host->InitializeForTesting(
       cc::TaskRunnerProvider::Create(base::ThreadTaskRunnerHandle::Get(),
                                      base::ThreadTaskRunnerHandle::Get()),
       base::MakeUnique<cc::FakeProxy>());
   fake_host_ = host.get();
   return std::move(host);
 }
 
 }  // namespace client
 }  // namespace blimp