Converts DockedWindowLayoutManager to common ash/wm types

ash/wm/workspace/workspace_window_resizer.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/workspace/workspace_window_resizer.h"
 
 #include <algorithm>
 #include <cmath>
 #include <utility>
 #include <vector>
@@ skipping 519 matching lines @@
   DCHECK(details().is_resizable);
 
   // A mousemove should still show the cursor even if the window is
   // being moved or resized with touch, so do not lock the cursor.
   if (details().source != aura::client::WINDOW_MOVE_SOURCE_TOUCH) {
     Shell* shell = Shell::GetInstance();
     shell->cursor_manager()->LockCursor();
     did_lock_cursor_ = true;
   }
 
-  aura::Window* dock_container = Shell::GetContainer(
-      GetAuraTarget()->GetRootWindow(), kShellWindowId_DockedContainer);
-  dock_layout_ = static_cast<DockedWindowLayoutManager*>(
-      dock_container->layout_manager());
+  dock_layout_ = DockedWindowLayoutManager::Get(GetTarget());
 
   // Only support attaching to the right/bottom.
   DCHECK(attached_windows_.empty() ||
          (details().window_component == HTRIGHT ||
           details().window_component == HTBOTTOM));
 
   // TODO: figure out how to deal with window going off the edge.
 
   // Calculate sizes so that we can maintain the ratios if we need to resize.
   int total_available = 0;
@@ skipping 365 matching lines @@
     if (snap_type_ == SNAP_NONE) {
       SetDraggedWindowDocked(false);
       return;
     }
   }
 
   DCHECK(snap_type_ == SNAP_LEFT || snap_type_ == SNAP_RIGHT);
   DockedAlignment desired_alignment = (snap_type_ == SNAP_LEFT) ?
       DOCKED_ALIGNMENT_LEFT : DOCKED_ALIGNMENT_RIGHT;
   const bool can_dock =
-      dock_layout_->CanDockWindow(GetAuraTarget(), desired_alignment) &&
-      dock_layout_->GetAlignmentOfWindow(GetAuraTarget()) !=
-          DOCKED_ALIGNMENT_NONE;
+      dock_layout_->CanDockWindow(GetTarget(), desired_alignment) &&
+      dock_layout_->GetAlignmentOfWindow(GetTarget()) != DOCKED_ALIGNMENT_NONE;
   if (!can_dock) {
     // If the window cannot be docked, undock the window. This may change the
     // workspace bounds and hence |snap_type_|.
     SetDraggedWindowDocked(false);
     snap_type_ = GetSnapType(location);
   }
   const bool can_snap = snap_type_ != SNAP_NONE && window_state()->CanSnap();
   if (!can_snap && !can_dock) {
     snap_type_ = SNAP_NONE;
     snap_phantom_window_controller_.reset();
@@ skipping 92 matching lines @@
     return SNAP_LEFT;
   if (location.x() >= area.right() - 1)
     return SNAP_RIGHT;
   return SNAP_NONE;
 }
 
 void WorkspaceWindowResizer::SetDraggedWindowDocked(bool should_dock) {
   if (should_dock) {
     if (!dock_layout_->is_dragged_window_docked()) {
       window_state()->set_bounds_changed_by_user(false);
-      dock_layout_->DockDraggedWindow(GetAuraTarget());
+      dock_layout_->DockDraggedWindow(GetTarget());
     }
   } else {
     if (dock_layout_->is_dragged_window_docked()) {
       dock_layout_->UndockDraggedWindow();
       window_state()->set_bounds_changed_by_user(true);
     }
   }
 }
 
 bool WorkspaceWindowResizer::AreBoundsValidSnappedBounds(
     wm::WindowStateType snapped_type,
     const gfx::Rect& bounds_in_parent) const {
   DCHECK(snapped_type == wm::WINDOW_STATE_TYPE_LEFT_SNAPPED ||
          snapped_type == wm::WINDOW_STATE_TYPE_RIGHT_SNAPPED);
   gfx::Rect snapped_bounds =
       ScreenUtil::GetDisplayWorkAreaBoundsInParent(GetAuraTarget());
   if (snapped_type == wm::WINDOW_STATE_TYPE_RIGHT_SNAPPED)
     snapped_bounds.set_x(snapped_bounds.right() - bounds_in_parent.width());
   snapped_bounds.set_width(bounds_in_parent.width());
   return bounds_in_parent == snapped_bounds;
 }
 
 }  // namespace ash