Add wrapper container for a vector of OwnPtr<T>

cc/CCScrollbarAnimationControllerLinearFadeTest.cpp

 // Copyright 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 "config.h"
 
 #include "CCScrollbarAnimationControllerLinearFade.h"
 
 #include "CCScrollbarLayerImpl.h"
 #include "CCSingleThreadProxy.h"
 #include <gtest/gtest.h>
 #include <wtf/OwnPtr.h>
 
 using namespace cc;
 
 namespace {
 
 class CCScrollbarAnimationControllerLinearFadeTest : public testing::Test {
 protected:
     virtual void SetUp()
     {
         m_scrollLayer = CCLayerImpl::create(1);
         m_scrollLayer->addChild(CCLayerImpl::create(2));
-        m_contentLayer = m_scrollLayer->children()[0].get();
+        m_contentLayer = m_scrollLayer->children()[0];
         m_scrollbarLayer = CCScrollbarLayerImpl::create(3);
 
         m_scrollLayer->setMaxScrollPosition(IntSize(50, 50));
         m_contentLayer->setBounds(IntSize(50, 50));
 
         m_scrollbarController = CCScrollbarAnimationControllerLinearFade::create(m_scrollLayer.get(), 2, 3);
         m_scrollbarController->setHorizontalScrollbarLayer(m_scrollbarLayer.get());
     }
 
     DebugScopedSetImplThread implThread;
@@ skipping 76 matching lines @@
     m_scrollbarController->animate(9);
     EXPECT_FLOAT_EQ(2 / 3.0f, m_scrollbarLayer->opacity());
     m_scrollbarController->animate(10);
     EXPECT_FLOAT_EQ(1 / 3.0f, m_scrollbarLayer->opacity());
     m_scrollbarController->animate(11);
     EXPECT_FLOAT_EQ(0, m_scrollbarLayer->opacity());
 
 }
 
 }