cc: Remove client/engine LayerTreeHostInProcess.

cc/test/remote_proto_channel_bridge.h

-// 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.
-
-#ifndef CC_TEST_REMOTE_PROTO_CHANNEL_BRIDGE_H_
-#define CC_TEST_REMOTE_PROTO_CHANNEL_BRIDGE_H_
-
-#include "base/macros.h"
-#include "cc/test/test_hooks.h"
-#include "cc/trees/remote_proto_channel.h"
-
-// The RemoteProtoChannelBridge mocks out the external network layer for the
-// unit tests by sending messages directly between the RemoteProtoChannels for
-// the server and client LayerTreeHost.
-namespace cc {
-class RemoteProtoChannelBridge;
-
-class FakeRemoteProtoChannel : public RemoteProtoChannel {
- public:
-  explicit FakeRemoteProtoChannel(RemoteProtoChannelBridge* bridge);
-  ~FakeRemoteProtoChannel() override;
-
-  // RemoteProtoChannel implementation
-  void SetProtoReceiver(ProtoReceiver* receiver) override;
-
-  virtual void OnProtoReceived(std::unique_ptr<proto::CompositorMessage> proto);
-
-  bool HasReceiver() const;
-
- protected:
-  RemoteProtoChannelBridge* bridge_;
-
- private:
-  RemoteProtoChannel::ProtoReceiver* receiver_;
-};
-
-class FakeRemoteProtoChannelMain : public FakeRemoteProtoChannel {
- public:
-  explicit FakeRemoteProtoChannelMain(RemoteProtoChannelBridge* bridge);
-
-  void SendCompositorProto(const proto::CompositorMessage& proto) override;
-};
-
-class FakeRemoteProtoChannelImpl : public FakeRemoteProtoChannel {
- public:
-  explicit FakeRemoteProtoChannelImpl(RemoteProtoChannelBridge* bridge);
-
-  void SendCompositorProto(const proto::CompositorMessage& proto) override;
-};
-
-class RemoteProtoChannelBridge {
- public:
-  RemoteProtoChannelBridge();
-  ~RemoteProtoChannelBridge();
-
-  FakeRemoteProtoChannelMain channel_main;
-  FakeRemoteProtoChannelImpl channel_impl;
-};
-
-}  // namespace cc
-
-#endif  // CC_TEST_REMOTE_PROTO_CHANNEL_BRIDGE_H_