[cros] Make login screen take whole screen in case of Aura.

chrome/browser/chromeos/login/helper.cc

Index: chrome/browser/chromeos/login/helper.cc
diff --git a/chrome/browser/chromeos/login/helper.cc b/chrome/browser/chromeos/login/helper.cc
index b5e56933cfbebd52e4b84b10ffeb85294f5585fe..9dd9b2d94c21410d5386655421a830c80404dd6e 100644
--- a/chrome/browser/chromeos/login/helper.cc
+++ b/chrome/browser/chromeos/login/helper.cc
@@ -161,7 +161,7 @@ views::Painter* CreateBackgroundPainter() {
 }
 
 gfx::Rect CalculateScreenBounds(const gfx::Size& size) {
-  gfx::Rect bounds(gfx::Screen::GetMonitorWorkAreaNearestWindow(NULL));
+  gfx::Rect bounds(gfx::Screen::GetMonitorAreaNearestWindow(NULL));
   if (!size.IsEmpty()) {
     int horizontal_diff = bounds.width() - size.width();
     int vertical_diff = bounds.height() - size.height();