Reorder the NativeViews attached to a view via kViewHostKey according to the position of the view

ui/views/widget/native_widget_aura_unittest.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 "ui/views/widget/native_widget_aura.h"
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 297 matching lines @@
   view->clear_got_gesture_event();
   EXPECT_FALSE(widget->HasCapture());
 
   // Work around for bug in NativeWidgetAura.
   // TODO: fix bug and remove this.
   widget->Close();
 }
 
 // Verifies views with layers are targeted for events properly.
 TEST_F(NativeWidgetAuraTest, PreferViewLayersToChildWindows) {
-  // Create two widget, |parent_root| and |child|. |child| is a child of
-  // |parent_root|.
+  // Create two widgets: |parent| and |child|. |child| is a child of |parent|.
   views::View* parent_root = new views::View;
   scoped_ptr<Widget> parent(new Widget());
   Widget::InitParams parent_params(Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   parent_params.ownership =
       views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   parent_params.context = root_window();
   parent->Init(parent_params);
   parent->SetContentsView(parent_root);
   parent->SetBounds(gfx::Rect(0, 0, 400, 400));
   parent->Show();
 
   scoped_ptr<Widget> child(new Widget());
   Widget::InitParams child_params(Widget::InitParams::TYPE_CONTROL);
   child_params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   child_params.parent = parent->GetNativeWindow();
   child->Init(child_params);
   child->SetBounds(gfx::Rect(0, 0, 200, 200));
   child->Show();
 
   // Point is over |child|.
   EXPECT_EQ(child->GetNativeWindow(),
             parent->GetNativeWindow()->GetEventHandlerForPoint(
                 gfx::Point(50, 50)));
 
-  // Create a view with a layer and stack it at the top (above |child|).
+  // Create a view with a layer and stack it at the bottom (below |child|).
   views::View* view_with_layer = new views::View;
   parent_root->AddChildView(view_with_layer);
   view_with_layer->SetBounds(0, 0, 50, 50);
   view_with_layer->SetPaintToLayer(true);
 
-  // Point is over |view_with_layer|, it should get the event.
+  // Make sure that |child| still gets the event.
+  EXPECT_EQ(child->GetNativeWindow(),
+            parent->GetNativeWindow()->GetEventHandlerForPoint(
+                gfx::Point(20, 20)));
+
+  // Move |view_with_layer| to the top and make sure it gets the
+  // event when the point is within |view_with_layer|'s bounds.
+  view_with_layer->layer()->parent()->StackAtTop(
+      view_with_layer->layer());
   EXPECT_EQ(parent->GetNativeWindow(),
             parent->GetNativeWindow()->GetEventHandlerForPoint(
                 gfx::Point(20, 20)));
 
   // Point is over |child|, it should get the event.
   EXPECT_EQ(child->GetNativeWindow(),
             parent->GetNativeWindow()->GetEventHandlerForPoint(
                 gfx::Point(70, 70)));
 
-  // Move |child| to the top and make sure it gets the event.
-  child->GetNativeWindow()->layer()->parent()->StackAtTop(
-      child->GetNativeWindow()->layer());
-  EXPECT_EQ(child->GetNativeWindow(),
-            parent->GetNativeWindow()->GetEventHandlerForPoint(
-                gfx::Point(20, 20)));
-
   delete view_with_layer;
   view_with_layer = NULL;
 
   EXPECT_EQ(child->GetNativeWindow(),
             parent->GetNativeWindow()->GetEventHandlerForPoint(
                 gfx::Point(20, 20)));
 
   // Work around for bug in NativeWidgetAura.
   // TODO: fix bug and remove this.
   parent->Close();
@@ skipping 26 matching lines @@
   scoped_ptr<Widget> widget(new Widget());
   NativeWidgetAura* window = Init(parent.get(), widget.get());
   window->Show();
   window->Close();
   base::MessageLoop::current()->RunUntilIdle();
   widget->GetNativeTheme();  // Shouldn't crash.
 }
 
 }  // namespace
 }  // namespace views