mus: Use a barebone mus client-lib in chrome-renderer.

content/renderer/mus/render_widget_mus_connection.cc

-// Copyright 2015 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 "content/renderer/mus/render_widget_mus_connection.h"
-
-#include <map>
-
-#include "base/lazy_instance.h"
-#include "base/macros.h"
-#include "content/renderer/render_thread_impl.h"
-#include "content/renderer/render_view_impl.h"
-#include "services/ui/public/cpp/window_compositor_frame_sink.h"
-#include "services/ui/public/interfaces/window_tree.mojom.h"
-
-namespace content {
-
-namespace {
-
-typedef std::map<int, RenderWidgetMusConnection*> ConnectionMap;
-base::LazyInstance<ConnectionMap>::Leaky g_connections =
-    LAZY_INSTANCE_INITIALIZER;
-}
-
-void RenderWidgetMusConnection::Bind(
-    mojo::InterfaceRequest<ui::mojom::WindowTreeClient> request) {
-  // TODO(sad): crbug.com/672913
-}
-
-std::unique_ptr<cc::CompositorFrameSink>
-RenderWidgetMusConnection::CreateCompositorFrameSink(
-    const cc::FrameSinkId& frame_sink_id,
-    scoped_refptr<cc::ContextProvider> context_provider,
-    gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager) {
-  // TODO(sad): crbug.com/672913
-  return nullptr;
-}
-
-// static
-RenderWidgetMusConnection* RenderWidgetMusConnection::Get(int routing_id) {
-  auto it = g_connections.Get().find(routing_id);
-  if (it != g_connections.Get().end())
-    return it->second;
-  return nullptr;
-}
-
-// static
-RenderWidgetMusConnection* RenderWidgetMusConnection::GetOrCreate(
-    int routing_id) {
-  RenderWidgetMusConnection* connection = Get(routing_id);
-  if (!connection) {
-    connection = new RenderWidgetMusConnection(routing_id);
-    g_connections.Get().insert(std::make_pair(routing_id, connection));
-  }
-  return connection;
-}
-
-RenderWidgetMusConnection::RenderWidgetMusConnection(int routing_id)
-    : routing_id_(routing_id) {
-  DCHECK(routing_id);
-}
-
-RenderWidgetMusConnection::~RenderWidgetMusConnection() {}
-
-}  // namespace content