Converts ash to use aura-mus

ash/mus/layout_manager.cc

Index: ash/mus/layout_manager.cc
diff --git a/ash/mus/layout_manager.cc b/ash/mus/layout_manager.cc
deleted file mode 100644
index 6652a8380b4707d3a8a74e801e0873efd9829987..0000000000000000000000000000000000000000
--- a/ash/mus/layout_manager.cc
+++ /dev/null
@@ -1,86 +0,0 @@
-// 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 "ash/mus/layout_manager.h"
-
-#include <stdint.h>
-
-#include "services/ui/public/cpp/property_type_converters.h"
-#include "services/ui/public/cpp/window.h"
-#include "services/ui/public/cpp/window_property.h"
-
-namespace ash {
-namespace mus {
-
-LayoutManager::~LayoutManager() {
-  Uninstall();
-}
-
-LayoutManager::LayoutManager(ui::Window* owner) : owner_(owner) {
-  owner_->AddObserver(this);
-  DCHECK(owner->children().empty());
-}
-
-void LayoutManager::Uninstall() {
-  if (!owner_)
-    return;
-  owner_->RemoveObserver(this);
-  for (auto* child : owner_->children())
-    child->RemoveObserver(this);
-  owner_ = nullptr;
-}
-
-void LayoutManager::OnTreeChanged(
-    const ui::WindowObserver::TreeChangeParams& params) {
-  DCHECK(params.target);
-  if (params.new_parent == owner_) {
-    // params.target was added to the layout.
-    WindowAdded(params.target);
-    params.target->AddObserver(this);
-    LayoutWindow(params.target);
-  } else if (params.old_parent == owner_) {
-    // params.target was removed from the layout.
-    params.target->RemoveObserver(this);
-    WindowRemoved(params.target);
-  }
-}
-
-void LayoutManager::OnWindowDestroying(ui::Window* window) {
-  if (owner_ == window)
-    Uninstall();
-}
-
-void LayoutManager::OnWindowBoundsChanged(ui::Window* window,
-                                          const gfx::Rect& old_bounds,
-                                          const gfx::Rect& new_bounds) {
-  if (window != owner_)
-    return;
-
-  // Changes to the container's bounds require all windows to be laid out.
-  for (auto* child : window->children())
-    LayoutWindow(child);
-}
-
-void LayoutManager::OnWindowSharedPropertyChanged(
-    ui::Window* window,
-    const std::string& name,
-    const std::vector<uint8_t>* old_data,
-    const std::vector<uint8_t>* new_data) {
-  if (window == owner_)
-    return;
-
-  // Changes to the following properties require the window to be laid out.
-  if (layout_properties_.count(name) > 0)
-    LayoutWindow(window);
-}
-
-void LayoutManager::WindowAdded(ui::Window* window) {}
-void LayoutManager::WindowRemoved(ui::Window* window) {}
-
-void LayoutManager::AddLayoutProperty(const std::string& name) {
-  layout_properties_.insert(name);
-}
-
-}  // namespace mus
-}  // namespace ash