cc:: Add remote mode to the compositor

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(scoped_ptr<proto::CompositorMessage> proto);
+
+  bool HasReceiver() const;
+
+ protected:
+  RemoteProtoChannelBridge* bridge_;
+
+ private:
+  RemoteProtoChannel::ProtoReceiver* receiver_;
+};
+
+class FakeRemoteProtoChannelMain : public FakeRemoteProtoChannel {
+ public:
+  FakeRemoteProtoChannelMain(RemoteProtoChannelBridge* bridge,
+                             TestHooks* test_hooks);
+
+  void SendCompositorProto(const proto::CompositorMessage& proto) override;
+
+ private:
+  TestHooks* test_hooks_;
+};
+
+class FakeRemoteProtoChannelImpl : public FakeRemoteProtoChannel {
+ public:
+  explicit FakeRemoteProtoChannelImpl(RemoteProtoChannelBridge* bridge);
+
+  void SendCompositorProto(const proto::CompositorMessage& proto) override;
+};
+
+class RemoteProtoChannelBridge {
+ public:
+  explicit RemoteProtoChannelBridge(TestHooks* test_hooks);
+  ~RemoteProtoChannelBridge();
+
+  FakeRemoteProtoChannelMain channel_main;
+  FakeRemoteProtoChannelImpl channel_impl;
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_REMOTE_PROTO_CHANNEL_BRIDGE_H_