Makes copying layers clone external textures.

ui/aura/test/test_window_delegate.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/test/test_window_delegate.h"
 
 #include "base/stringprintf.h"
 #include "ui/aura/window.h"
 #include "ui/base/events/event.h"
 #include "ui/base/hit_test.h"
@@ skipping 75 matching lines @@
 void TestWindowDelegate::OnWindowTargetVisibilityChanged(bool visible) {
 }
 
 bool TestWindowDelegate::HasHitTestMask() const {
   return false;
 }
 
 void TestWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
 }
 
+scoped_refptr<ui::Texture> TestWindowDelegate::CopyTexture() {
+  return scoped_refptr<ui::Texture>();
+}
+
 ui::EventResult TestWindowDelegate::OnKeyEvent(ui::KeyEvent* event) {
   return ui::ER_UNHANDLED;
 }
 
 ui::EventResult TestWindowDelegate::OnMouseEvent(ui::MouseEvent* event) {
   return ui::ER_UNHANDLED;
 }
 
 ui::TouchStatus TestWindowDelegate::OnTouchEvent(ui::TouchEvent* event) {
   return ui::TOUCH_STATUS_UNKNOWN;
@@ skipping 114 matching lines @@
   std::string result = StringPrintf("%d %d",
                                     key_press_count_,
                                     key_release_count_);
   key_press_count_ = 0;
   key_release_count_ = 0;
   return result;
 }
 
 }  // namespace test
 }  // namespace aura