Makes the maximize/restore button handling

ash/wm/workspace/phantom_window_controller.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/workspace/phantom_window_controller.h"
 
+#include "ash/shell.h"
+#include "ash/shell_window_ids.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_observer.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/compositor/layer.h"
 #include "ui/gfx/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/painter.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
@@ skipping 151 matching lines @@
       new DelayedWidgetDeleter(phantom_widget_.release(), window_);
   deleter->ScheduleDelete(delay_ms);
 }
 
 void PhantomWindowController::ShowNow() {
   if (!phantom_widget_.get()) {
     phantom_widget_.reset(new views::Widget);
     views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
     params.transparent = true;
     params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-    params.parent = window_->parent();
+    if (type_ == TYPE_DESTINATION) {
+      params.parent = window_->parent();
+    } else {
+      // TYPE_EDGE is used by FrameMaximizeButton to highlight the launcher
+      // button, make sure the phantom appears over it.
+      params.parent =
+          Shell::GetInstance()->GetContainer(kShellWindowId_LauncherContainer);
+    }
     params.can_activate = false;
+    params.keep_on_top = true;
     phantom_widget_->set_focus_on_creation(false);
     phantom_widget_->Init(params);
     phantom_widget_->SetVisibilityChangedAnimationsEnabled(false);
     phantom_widget_->GetNativeWindow()->SetName("PhantomWindow");
     views::View* content_view = new views::View;
     views::Painter* painter = type_ == TYPE_DESTINATION ?
         static_cast<views::Painter*>(new DestinationPainter) :
         static_cast<views::Painter*>(new EdgePainter);
     content_view->set_background(
         views::Background::CreateBackgroundPainter(true, painter));
@@ skipping 11 matching lines @@
   phantom_widget_->Show();
   // Fade the window in.
   ui::Layer* layer = phantom_widget_->GetNativeWindow()->layer();
   layer->SetOpacity(0);
   ui::ScopedLayerAnimationSettings scoped_setter(layer->GetAnimator());
   layer->SetOpacity(1);
 }
 
 }  // namespace internal
 }  // namespace ash