Makes Window::RecreateLayer() reset bounds

ui/aura/window_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/aura/window.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1953 matching lines @@
   ui::Layer child_layer;
   layer->Add(&child_layer);
 
   scoped_ptr<ui::Layer> old_layer(w.RecreateLayer());
   layer = w.layer();
   EXPECT_EQ(ui::LAYER_SOLID_COLOR, layer->type());
   EXPECT_FALSE(layer->scale_content());
   EXPECT_FALSE(layer->visible());
   EXPECT_EQ(1u, layer->children().size());
   EXPECT_TRUE(layer->GetMasksToBounds());
+  // On recreate it's expected the bounds of both the window and layer go to
+  // 0. See description of Window::RecreateLayer() for details.
+  EXPECT_EQ("0,0 0x0", w.bounds().ToString());
+  EXPECT_EQ("0,0 0x0", layer->bounds().ToString());
 }
 
 // Verify that RecreateLayer() stacks the old layer above the newly creatd
 // layer.
 TEST_F(WindowTest, RecreateLayerZOrder) {
   scoped_ptr<Window> w(
       CreateTestWindow(SK_ColorWHITE, 1, gfx::Rect(0, 0, 100, 100),
                        root_window()));
   scoped_ptr<ui::Layer> old_layer(w->RecreateLayer());
 
@@ skipping 1352 matching lines @@
               BuildRootLayerTreeDescription(*root.layer()))
         << "layer tree doesn't match at " << i;
     EXPECT_EQ(data[i].expected_description,
               BuildRootWindowTreeDescription(root))
         << "window tree doesn't match at " << i;
   }
 }
 
 }  // namespace test
 }  // namespace aura