[cc] Make LayerImpls point at LayerTreeImpl instead of LTHI

cc/io_surface_layer.cc

 // 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 "cc/io_surface_layer.h"
 
 #include "cc/io_surface_layer_impl.h"
 
 namespace cc {
 
@@ skipping 12 matching lines @@
 {
 }
 
 void IOSurfaceLayer::setIOSurfaceProperties(uint32_t ioSurfaceId, const gfx::Size& size)
 {
     m_ioSurfaceId = ioSurfaceId;
     m_ioSurfaceSize = size;
     setNeedsCommit();
 }
 
-scoped_ptr<LayerImpl> IOSurfaceLayer::createLayerImpl(LayerTreeHostImpl* hostImpl)
+scoped_ptr<LayerImpl> IOSurfaceLayer::createLayerImpl(LayerTreeImpl* treeImpl)
 {
-    return IOSurfaceLayerImpl::create(hostImpl, m_layerId).PassAs<LayerImpl>();
+    return IOSurfaceLayerImpl::create(treeImpl, m_layerId).PassAs<LayerImpl>();
 }
 
 bool IOSurfaceLayer::drawsContent() const
 {
     return m_ioSurfaceId && Layer::drawsContent();
 }
 
 void IOSurfaceLayer::pushPropertiesTo(LayerImpl* layer)
 {
     Layer::pushPropertiesTo(layer);
 
     IOSurfaceLayerImpl* ioSurfaceLayer = static_cast<IOSurfaceLayerImpl*>(layer);
     ioSurfaceLayer->setIOSurfaceProperties(m_ioSurfaceId, m_ioSurfaceSize);
 }
 
 }  // namespace cc