ash: Move alignment and autohide behavior from Shelf to WmShelf

ash/common/shelf/shelf_widget.cc

 // Copyright 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/common/shelf/shelf_widget.h"
 
 #include "ash/common/focus_cycler.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_background_animator_observer.h"
@@ skipping 295 matching lines @@
   shelf_container->GetRootWindowController()
       ->ConfigureWidgetInitParamsForContainer(
           this, shelf_container->GetShellWindowId(), &params);
   Init(params);
 
   // The shelf should not take focus when initially shown.
   set_focus_on_creation(false);
   SetContentsView(delegate_view_);
   delegate_view_->SetParentLayer(GetLayer());
 
-  shelf_layout_manager_ = new ShelfLayoutManager(this);
+  shelf_layout_manager_ = new ShelfLayoutManager(this, wm_shelf_);
   shelf_layout_manager_->AddObserver(this);
   shelf_container->SetLayoutManager(base::WrapUnique(shelf_layout_manager_));
   background_animator_.PaintBackground(
       shelf_layout_manager_->GetShelfBackgroundType(),
       BACKGROUND_CHANGE_IMMEDIATE);
   wm_shelf_->SetShelfLayoutManager(shelf_layout_manager_);
 
   // TODO(jamescook): Move ownership to RootWindowController.
   status_area_widget_ = new StatusAreaWidget(status_container, wm_shelf_);
   status_area_widget_->CreateTrayViews();
@@ skipping 73 matching lines @@
 
   NOTREACHED();
   return false;
 }
 
 ShelfAlignment ShelfWidget::GetAlignment() const {
   return wm_shelf_->GetAlignment();
 }
 
 void ShelfWidget::OnShelfAlignmentChanged() {
+  shelf_view_->OnShelfAlignmentChanged();
   status_area_widget_->SetShelfAlignment(GetAlignment());
   delegate_view_->SchedulePaint();
 }
 
 void ShelfWidget::SetDimsShelf(bool dimming) {
   delegate_view_->SetDimmed(dimming);
   // Repaint all children, allowing updates to reflect dimmed state eg:
   // status area background, app list button and overflow button.
   if (shelf_view_)
     shelf_view_->SchedulePaintForAllButtons();
@@ skipping 110 matching lines @@
   if (shelf_view_)
     shelf_view_->UpdateShelfItemBackground(alpha);
 }
 
 void ShelfWidget::WillDeleteShelfLayoutManager() {
   shelf_layout_manager_->RemoveObserver(this);
   shelf_layout_manager_ = nullptr;
 }
 
 }  // namespace ash