Revert 233787 "Eliminate Shell::RootWindowList in favor of aura:..."

trunk/src/ash/desktop_background/desktop_background_controller.cc

Index: trunk/src/ash/desktop_background/desktop_background_controller.cc
===================================================================
--- trunk/src/ash/desktop_background/desktop_background_controller.cc	(revision 233812)
+++ trunk/src/ash/desktop_background/desktop_background_controller.cc	(working copy)
@@ -362,7 +362,7 @@
 }
 
 void DesktopBackgroundController::InstallDesktopController(
-    aura::Window* root_window) {
+    aura::RootWindow* root_window) {
   internal::DesktopBackgroundWidgetController* component = NULL;
   int container_id = GetBackgroundContainerId(locked_);
 
@@ -385,8 +385,8 @@
 }
 
 void DesktopBackgroundController::InstallDesktopControllerForAllWindows() {
-  aura::Window::Windows root_windows = Shell::GetAllRootWindows();
-  for (aura::Window::Windows::iterator iter = root_windows.begin();
+  Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
+  for (Shell::RootWindowList::iterator iter = root_windows.begin();
        iter != root_windows.end(); ++iter) {
     InstallDesktopController(*iter);
   }