Adding new maximize menu according to spec

ash/wm/workspace/phantom_window_controller.cc

Index: ash/wm/workspace/phantom_window_controller.cc
diff --git a/ash/wm/workspace/phantom_window_controller.cc b/ash/wm/workspace/phantom_window_controller.cc
index 99861fdb3bd2ff041b58e6622ee95e4d2db97402..bc5c245affa47c27fc216e07d645f58136d7fd0c 100644
--- a/ash/wm/workspace/phantom_window_controller.cc
+++ b/ash/wm/workspace/phantom_window_controller.cc
@@ -72,7 +72,8 @@ class EdgePainter : public views::Painter {
 }  // namespace
 
 PhantomWindowController::PhantomWindowController(aura::Window* window)
-    : window_(window) {
+    : window_(window),
+      phantom_below_window_(NULL) {
 }
 
 PhantomWindowController::~PhantomWindowController() {
@@ -139,7 +140,10 @@ void PhantomWindowController::CreatePhantomWidget(const gfx::Rect& bounds) {
       views::Background::CreateBackgroundPainter(true, new EdgePainter));
   phantom_widget_->SetContentsView(content_view);
   phantom_widget_->SetBounds(bounds);
-  phantom_widget_->StackAbove(window_);
+  if (phantom_below_window_)
+    phantom_widget_->StackBelow(phantom_below_window_);
+  else
+    phantom_widget_->StackAbove(window_);
   phantom_widget_->Show();
   // Fade the window in.
   ui::Layer* layer = phantom_widget_->GetNativeWindow()->layer();