views: Some more layer change, and add/update some tests for layers.

ui/aura/window_unittest.cc

 // Copyright (c) 2011 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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/aura_test_base.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura/event.h"
@@ skipping 35 matching lines @@
     return HTCLIENT;
   }
   virtual bool OnMouseEvent(MouseEvent* event) OVERRIDE { return false; }
   virtual bool ShouldActivate(MouseEvent* event) OVERRIDE { return true; }
   virtual void OnActivated() OVERRIDE {}
   virtual void OnLostActive() OVERRIDE {}
   virtual void OnCaptureLost() OVERRIDE {}
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {}
   virtual void OnWindowDestroying() OVERRIDE {}
   virtual void OnWindowDestroyed() OVERRIDE {}
+  virtual void OnWindowVisibilityChanged(bool visible) OVERRIDE {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WindowDelegateImpl);
 };
 
 // Used for verifying destruction methods are invoked.
 class DestroyTrackingDelegateImpl : public WindowDelegateImpl {
  public:
   DestroyTrackingDelegateImpl()
       : destroying_count_(0),
@@ skipping 685 matching lines @@
 
   // Deactivate w1 and make sure w2 becomes active and frontmost.
   w1->Deactivate();
   EXPECT_FALSE(w1->IsActive());
   EXPECT_TRUE(w2->IsActive());
   EXPECT_EQ(w2.get(), parent->children()[1]);
 }
 
 }  // namespace internal
 }  // namespace aura