mash: Migrate SessionStateDelegate access to WmShell.

ash/wm/workspace/workspace_layout_manager_unittest.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/common/wm/workspace/workspace_layout_manager.h"
 
 #include <string>
 #include <utility>
 
 #include "ash/aura/wm_window_aura.h"
@@ skipping 821 matching lines @@
   Shelf* shelf = Shelf::ForWindow(window.get());
   shelf->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);
 
   window->SetBounds(ScreenUtil::GetMaximizedWindowBoundsInParent(window.get()));
   gfx::Rect window_bounds = window->bounds();
   EXPECT_EQ(
       ScreenUtil::GetMaximizedWindowBoundsInParent(window.get()).ToString(),
       window_bounds.ToString());
 
   // The window size should not get touched while we are in lock screen.
-  Shell::GetInstance()->session_state_delegate()->LockScreen();
+  WmShell::Get()->GetSessionStateDelegate()->LockScreen();
   ShelfLayoutManager* shelf_layout_manager = shelf->shelf_layout_manager();
   shelf_layout_manager->UpdateVisibilityState();
   EXPECT_EQ(window_bounds.ToString(), window->bounds().ToString());
 
   // Coming out of the lock screen the window size should still remain.
-  Shell::GetInstance()->session_state_delegate()->UnlockScreen();
+  WmShell::Get()->GetSessionStateDelegate()->UnlockScreen();
   shelf_layout_manager->UpdateVisibilityState();
   EXPECT_EQ(
       ScreenUtil::GetMaximizedWindowBoundsInParent(window.get()).ToString(),
       window_bounds.ToString());
   EXPECT_EQ(window_bounds.ToString(), window->bounds().ToString());
 }
 
 // Following tests are written to test the backdrop functionality.
 
 namespace {
@@ skipping 15 matching lines @@
                                              kShellWindowId_DefaultContainer);
   }
 
   aura::Window* CreateTestWindow(const gfx::Rect& bounds) {
     aura::Window* window = CreateTestWindowInShellWithBounds(bounds);
     return window;
   }
 
   // Turn the top window back drop on / off.
   void ShowTopWindowBackdrop(bool show) {
-    std::unique_ptr<ash::WorkspaceLayoutManagerBackdropDelegate> backdrop;
+    std::unique_ptr<WorkspaceLayoutManagerBackdropDelegate> backdrop;
     if (show) {
-      backdrop.reset(new ash::WorkspaceBackdropDelegate(
+      backdrop.reset(new WorkspaceBackdropDelegate(
           WmWindowAura::Get(default_container_)));
     }
     GetWorkspaceLayoutManager(default_container_)
         ->SetMaximizeBackdropDelegate(std::move(backdrop));
     // Closing and / or opening can be a delayed operation.
     base::RunLoop().RunUntilIdle();
   }
 
   // Return the default container.
   aura::Window* default_container() { return default_container_; }
@@ skipping 293 matching lines @@
       CreateTestWindowInShellWithDelegate(&delegate2, -1, keyboard_bounds()));
   wm::GetWindowState(window.get())->set_ignore_keyboard_bounds_change(true);
   wm::ActivateWindow(window.get());
 
   EXPECT_EQ(keyboard_bounds(), window->bounds());
   ShowKeyboard();
   EXPECT_EQ(keyboard_bounds(), window->bounds());
 }
 
 }  // namespace ash