Adds WmLayoutManager and the aura wrapper AuraLayoutManagerAdapter

ash/wm/aura/aura_layout_manager_adapter.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 "ash/wm/aura/aura_layout_manager_adapter.h"
+
+#include "ash/wm/aura/wm_window_aura.h"
+#include "ash/wm/common/wm_layout_manager.h"
+
+namespace ash {
+namespace wm {
+
+AuraLayoutManagerAdapter::AuraLayoutManagerAdapter(
+    std::unique_ptr<WmLayoutManager> wm_layout_manager)
+    : wm_layout_manager_(std::move(wm_layout_manager)) {}
+
+AuraLayoutManagerAdapter::~AuraLayoutManagerAdapter() {}
+
+void AuraLayoutManagerAdapter::OnWindowResized() {
+  wm_layout_manager_->OnWindowResized();
+}
+
+void AuraLayoutManagerAdapter::OnWindowAddedToLayout(aura::Window* child) {
+  wm_layout_manager_->OnWindowAddedToLayout(WmWindowAura::Get(child));
+}
+
+void AuraLayoutManagerAdapter::OnWillRemoveWindowFromLayout(
+    aura::Window* child) {
+  wm_layout_manager_->OnWillRemoveWindowFromLayout(WmWindowAura::Get(child));
+}
+
+void AuraLayoutManagerAdapter::OnWindowRemovedFromLayout(aura::Window* child) {
+  wm_layout_manager_->OnWindowRemovedFromLayout(WmWindowAura::Get(child));
+}
+
+void AuraLayoutManagerAdapter::OnChildWindowVisibilityChanged(
+    aura::Window* child,
+    bool visible) {
+  wm_layout_manager_->OnChildWindowVisibilityChanged(WmWindowAura::Get(child),
+                                                     visible);
+}
+
+void AuraLayoutManagerAdapter::SetChildBounds(
+    aura::Window* child,
+    const gfx::Rect& requested_bounds) {
+  wm_layout_manager_->SetChildBounds(WmWindowAura::Get(child),
+                                     requested_bounds);
+}
+
+}  // namespace wm
+}  // namespace ash