Use mirror layer for minimized windows in overview mode

ash/wm/window_mirror_view.cc

 // Copyright 2016 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/window_mirror_view.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/wm/window_state.h"
+#include "ash/common/wm_window_property.h"
 #include "ash/wm/window_state_aura.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_tree_owner.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/window_util.h"
 
 namespace ash {
 namespace wm {
@@ skipping 76 matching lines @@
   }
 
   Layout();
 }
 
 ui::Layer* WindowMirrorView::GetMirrorLayer() {
   return layer_owner_->root();
 }
 
 gfx::Rect WindowMirrorView::GetClientAreaBounds() const {
+  int insets = target_->GetIntProperty(WmWindowProperty::TOP_VIEW_INSET);
+  if (insets > 0) {
+    gfx::Rect bounds(target_->GetBounds().size());
+    bounds.Inset(0, insets, 0, 0);
+    return bounds;
+  }
   // The target window may not have a widget in unit tests.
   if (!target_->GetInternalWidget())
     return gfx::Rect();
   views::View* client_view = target_->GetInternalWidget()->client_view();
   return client_view->ConvertRectToWidget(client_view->GetLocalBounds());
 }
 
 }  // namespace wm
 }  // namespace ash