Remove some pass-thrus on RootWindow API in favor of exposing the RootWindowHost again.

chrome/browser/ui/aura/active_desktop_monitor.cc

Index: chrome/browser/ui/aura/active_desktop_monitor.cc
diff --git a/chrome/browser/ui/aura/active_desktop_monitor.cc b/chrome/browser/ui/aura/active_desktop_monitor.cc
index 411aa3e1f921f98e40432706bef765251b507a72..736d84892154bca547b5d996749897ae358aa4d8 100644
--- a/chrome/browser/ui/aura/active_desktop_monitor.cc
+++ b/chrome/browser/ui/aura/active_desktop_monitor.cc
@@ -44,10 +44,10 @@ bool ActiveDesktopMonitor::IsDesktopWindow(aura::RootWindow* root_window) {
   // for an Ash display.
 #if defined(OS_WIN)
   return views::DesktopRootWindowHostWin::GetContentWindowForHWND(
-      root_window->GetAcceleratedWidget()) != NULL;
+      root_window->host()->GetAcceleratedWidget()) != NULL;
 #elif defined(USE_X11)
   return views::DesktopRootWindowHostX11::GetContentWindowForXID(
-      root_window->GetAcceleratedWidget()) != NULL;
+      root_window->host()->GetAcceleratedWidget()) != NULL;
 #else
   NOTREACHED();
   return true;