mash: Move more shelf files to ash/common/shelf.

ash/wm/status_area_layout_manager.cc

-// Copyright (c) 2012 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/status_area_layout_manager.h"
-
-#include "ash/common/system/status_area_widget.h"
-#include "ash/common/wm_lookup.h"
-#include "ash/common/wm_window.h"
-#include "ash/shelf/shelf_layout_manager.h"
-#include "ash/shelf/shelf_widget.h"
-#include "base/auto_reset.h"
-
-namespace ash {
-
-////////////////////////////////////////////////////////////////////////////////
-// StatusAreaLayoutManager, public:
-
-StatusAreaLayoutManager::StatusAreaLayoutManager(ShelfWidget* shelf_widget)
-    : in_layout_(false), shelf_widget_(shelf_widget) {}
-
-StatusAreaLayoutManager::~StatusAreaLayoutManager() {}
-
-////////////////////////////////////////////////////////////////////////////////
-// StatusAreaLayoutManager, aura::LayoutManager implementation:
-
-void StatusAreaLayoutManager::OnWindowResized() {
-  LayoutStatusArea();
-}
-
-void StatusAreaLayoutManager::SetChildBounds(
-    WmWindow* child,
-    const gfx::Rect& requested_bounds) {
-  // Only need to have the shelf do a layout if the child changing is the status
-  // area and the shelf isn't in the process of doing a layout.
-  if (child !=
-          WmLookup::Get()->GetWindowForWidget(
-              shelf_widget_->status_area_widget()) ||
-      in_layout_) {
-    wm::WmSnapToPixelLayoutManager::SetChildBounds(child, requested_bounds);
-    return;
-  }
-
-  // If the bounds match, no need to do anything. Check for target bounds to
-  // ensure any active animation is retargeted.
-  if (requested_bounds == child->GetTargetBounds())
-    return;
-
-  wm::WmSnapToPixelLayoutManager::SetChildBounds(child, requested_bounds);
-  LayoutStatusArea();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// StatusAreaLayoutManager, private:
-
-void StatusAreaLayoutManager::LayoutStatusArea() {
-  // Shelf layout manager may be already doing layout.
-  if (shelf_widget_->shelf_layout_manager()->updating_bounds())
-    return;
-
-  base::AutoReset<bool> auto_reset_in_layout(&in_layout_, true);
-  shelf_widget_->shelf_layout_manager()->LayoutShelf();
-}
-
-}  // namespace ash