[cc] Store CCLayerImpls as scoped_ptrs

cc/LayerChromiumTest.cpp

 // Copyright 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 "config.h"
 
 #include "LayerChromium.h"
 
 #include "CCGeometryTestUtils.h"
 #include "CCKeyframedAnimationCurve.h"
@@ skipping 503 matching lines @@
     // Test properties that should call setNeedsDisplay and setNeedsCommit
     EXECUTE_AND_VERIFY_SET_NEEDS_COMMIT_BEHAVIOR(1, testLayer->setBounds(IntSize(5, 10)));
     EXPECT_TRUE(testLayer->needsDisplay());
 }
 
 TEST_F(LayerChromiumTest, verifyPushPropertiesAccumulatesUpdateRect)
 {
     DebugScopedSetImplThread setImplThread;
 
     scoped_refptr<LayerChromium> testLayer = LayerChromium::create();
-    OwnPtr<CCLayerImpl> implLayer = CCLayerImpl::create(1);
+    scoped_ptr<CCLayerImpl> implLayer = CCLayerImpl::create(1);
 
     testLayer->setNeedsDisplayRect(FloatRect(FloatPoint::zero(), FloatSize(5, 5)));
     testLayer->pushPropertiesTo(implLayer.get());
     EXPECT_FLOAT_RECT_EQ(FloatRect(FloatPoint::zero(), FloatSize(5, 5)), implLayer->updateRect());
 
     // The CCLayerImpl's updateRect should be accumulated here, since we did not do anything to clear it.
     testLayer->setNeedsDisplayRect(FloatRect(FloatPoint(10, 10), FloatSize(5, 5)));
     testLayer->pushPropertiesTo(implLayer.get());
     EXPECT_FLOAT_RECT_EQ(FloatRect(FloatPoint::zero(), FloatSize(15, 15)), implLayer->updateRect());
 
@@ skipping 303 matching lines @@
     scoped_refptr<MockLayerChromium> layer(new MockLayerChromium);
     EXPECT_FALSE(layer->needsDisplay());
     layer->setBounds(IntSize(0, 10));
     EXPECT_FALSE(layer->needsDisplay());
     layer->setBounds(IntSize(10, 10));
     EXPECT_TRUE(layer->needsDisplay());
 }
 
 
 } // namespace