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

ash/wm/session_state_animator.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/session_state_animator.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 385 matching lines @@
     aura::Window* window = *it;
     ui::Layer* layer = window->layer();
     if (!IsLayerAnimated(layer, type))
       return false;
   }
   return true;
 }
 
 bool SessionStateAnimator::TestApi::RootWindowIsAnimated(AnimationType type)
     const {
-  aura::RootWindow* root_window = Shell::GetPrimaryRootWindow();
+  aura::Window* root_window = Shell::GetPrimaryRootWindow();
   ui::Layer* layer = root_window->layer();
   return IsLayerAnimated(layer, type);
 }
 
 const int SessionStateAnimator::kAllLockScreenContainersMask =
     SessionStateAnimator::LOCK_SCREEN_BACKGROUND |
     SessionStateAnimator::LOCK_SCREEN_CONTAINERS |
     SessionStateAnimator::LOCK_SCREEN_RELATED_CONTAINERS;
 
 const int SessionStateAnimator::kAllContainersMask =
@@ skipping 31 matching lines @@
   }
   // Satisfy compilers that do not understand that we will return from switch
   // above anyway.
   DCHECK(false) << "Unhandled animation speed " << speed;
   return base::TimeDelta();
 }
 
 // Fills |containers| with the containers described by |container_mask|.
 void SessionStateAnimator::GetContainers(int container_mask,
                                          aura::Window::Windows* containers) {
-  aura::RootWindow* root_window = Shell::GetPrimaryRootWindow();
+  aura::Window* root_window = Shell::GetPrimaryRootWindow();
   containers->clear();
 
   if (container_mask & DESKTOP_BACKGROUND) {
     containers->push_back(Shell::GetContainer(
         root_window,
         internal::kShellWindowId_DesktopBackgroundContainer));
   }
   if (container_mask & LAUNCHER) {
     containers->push_back(Shell::GetContainer(
         root_window,
@@ skipping 66 matching lines @@
   aura::Window::Windows containers;
   GetContainers(container_mask, &containers);
   for (aura::Window::Windows::const_iterator it = containers.begin();
        it != containers.end(); ++it) {
     RunAnimationForWindow(*it, type, speed, observer);
   }
 }
 
 void SessionStateAnimator::StartGlobalAnimation(AnimationType type,
                                                 AnimationSpeed speed) {
-  aura::RootWindow* root_window = Shell::GetPrimaryRootWindow();
+  aura::Window* root_window = Shell::GetPrimaryRootWindow();
   RunAnimationForWindow(root_window, type, speed, NULL);
 }
 
 void SessionStateAnimator::RunAnimationForWindow(
     aura::Window* window,
     AnimationType type,
     AnimationSpeed speed,
     ui::LayerAnimationObserver* observer) {
   base::TimeDelta duration = GetDuration(speed);
 
@@ skipping 69 matching lines @@
   foreground_->SetColor(SK_ColorWHITE);
   foreground_->GetWidget()->Show();
 }
 
 void SessionStateAnimator::DropForeground() {
   foreground_.reset();
 }
 
 }  // namespace internal
 }  // namespace ash