Make GetRootWindow() return a Window instead of a RootWindow.

ash/shelf/shelf_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/shelf/shelf_layout_manager.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/ash_switches.h"
 #include "ash/display/display_manager.h"
@@ skipping 779 matching lines @@
 
 #if defined(OS_WIN)
 // RootWindow and Display can't resize on Windows Ash. http://crbug.com/165962
 #define MAYBE_AutoHide DISABLED_AutoHide
 #else
 #define MAYBE_AutoHide AutoHide
 #endif
 
 // Various assertions around auto-hide.
 TEST_F(ShelfLayoutManagerTest, MAYBE_AutoHide) {
-  aura::RootWindow* root = Shell::GetPrimaryRootWindow();
+  aura::Window* root = Shell::GetPrimaryRootWindow();
   aura::test::EventGenerator generator(root, root);
   generator.MoveMouseTo(0, 0);
 
   ShelfLayoutManager* shelf = GetShelfLayoutManager();
   shelf->SetAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);
   views::Widget* widget = new views::Widget;
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
   params.bounds = gfx::Rect(0, 0, 200, 200);
   params.context = CurrentContext();
   // Widget is now owned by the parent window.
@@ skipping 156 matching lines @@
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
   params.bounds = gfx::Rect(0, 0, 200, 200);
   params.context = CurrentContext();
   // Widget is now owned by the parent window.
   widget->Init(params);
   widget->Maximize();
   widget->Show();
   EXPECT_EQ(SHELF_AUTO_HIDE, shelf->visibility_state());
   EXPECT_EQ(SHELF_AUTO_HIDE_HIDDEN, shelf->auto_hide_state());
 
-  aura::RootWindow* root = Shell::GetPrimaryRootWindow();
+  aura::Window* root = Shell::GetPrimaryRootWindow();
   // LayoutShelf() forces the animation to completion, at which point the
   // launcher should go off the screen.
   shelf->LayoutShelf();
   EXPECT_EQ(root->bounds().bottom() - ShelfLayoutManager::kAutoHideSize,
             GetShelfWidget()->GetWindowBoundsInScreen().y());
 
   aura::Window* lock_container = Shell::GetContainer(
       Shell::GetPrimaryRootWindow(),
       internal::kShellWindowId_LockScreenContainer);
 
@@ skipping 882 matching lines @@
   shelf->SetAlignment(SHELF_ALIGNMENT_LEFT);
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
   generator.ClickLeftButton();
   EXPECT_TRUE(status_area_widget->IsMessageBubbleShown());
   generator.ClickLeftButton();
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
 }
 
 }  // namespace internal
 }  // namespace ash