chromeos: Converts WorkspaceLayoutManager to aura::LayoutManager

ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc

Index: ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc
diff --git a/ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc b/ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc
index be01a8ffe905d5d0e1f4bdd1ace05943884f27d8..478425fa6d066262368dd9857184e48485f12ce4 100644
--- a/ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc
+++ b/ash/wm/workspace/workspace_layout_manager_keyboard_unittest.cc
@@ -40,8 +40,8 @@
 namespace ash {
 namespace {
 
-WorkspaceLayoutManager* GetWorkspaceLayoutManager(WmWindow* container) {
-  return static_cast<WorkspaceLayoutManager*>(container->GetLayoutManager());
+WorkspaceLayoutManager* GetWorkspaceLayoutManager(aura::Window* container) {
+  return static_cast<WorkspaceLayoutManager*>(container->layout_manager());
 }
 
 }  // namespace
@@ -54,8 +54,8 @@ class WorkspaceLayoutManagerKeyboardTest2 : public test::AshTestBase {
   void SetUp() override {
     test::AshTestBase::SetUp();
     UpdateDisplay("800x600");
-    WmWindow* default_container =
-        ShellPort::Get()->GetPrimaryRootWindowController()->GetWmContainer(
+    aura::Window* default_container =
+        Shell::GetPrimaryRootWindowController()->GetContainer(
             kShellWindowId_DefaultContainer);
     layout_manager_ = GetWorkspaceLayoutManager(default_container);
   }