cc/blimp: Add a LayerTreeHostRemote implementation.

cc/test/fake_compositor_proto_state_sink.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 "cc/test/fake_compositor_proto_state_sink.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "cc/blimp/compositor_proto_state_sink_client.h"
+
+namespace cc {
+
+FakeCompositorProtoStateSink::FakeCompositorProtoStateSink()
+    : client_(nullptr), weak_factory_(this) {}
+
+FakeCompositorProtoStateSink::~FakeCompositorProtoStateSink() {}
+
+void FakeCompositorProtoStateSink::BindToClient(
+    CompositorProtoStateSinkClient* client) {
+  DCHECK(!client_);
+  client_ = client;
+}
+
+void FakeCompositorProtoStateSink::ScheduleMainFrame() {
+  client_->GetMainTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&FakeCompositorProtoStateSink::BeginMainFrame,
+                            weak_factory_.GetWeakPtr()));
+}
+
+void FakeCompositorProtoStateSink::BeginMainFrame() {
+  client_->BeginMainFrame();
+}
+
+}  // namespace cc