Basic display management for mus

components/mus/ws/platform_screen_impl.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 "components/mus/ws/platform_screen_impl.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/memory/ptr_util.h"
+#include "base/thread_task_runner_handle.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace mus {
+namespace ws {
+
+// static
+std::unique_ptr<PlatformScreen> PlatformScreen::Create() {
+  return base::WrapUnique(new PlatformScreenImpl);
+}
+
+PlatformScreenImpl::PlatformScreenImpl() : weak_ptr_factory_(this) {}
+
+PlatformScreenImpl::~PlatformScreenImpl() {}
+
+void PlatformScreenImpl::Init() {}
+
+void PlatformScreenImpl::ConfigurePhysicalDisplay(
+    const ConfiguredDisplayCallback& callback) {
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&PlatformScreenImpl::FixedSizeScreenConfiguration,

[sky, 2016/05/04 17:05:44]

You shouldn't need to route the callback through this and use a weakptr. Use a
function in an anonymous namespace.

[rjkroege, 2016/05/04 22:50:13]

Done.

+                            weak_ptr_factory_.GetWeakPtr(), callback));
+}
+
+void PlatformScreenImpl::FixedSizeScreenConfiguration(
+    ConfiguredDisplayCallback callback) {
+  callback.Run(1, gfx::Rect(1024, 768));
+}
+
+}  // namespace ws
+}  // namespace mus