[cc] Make LayerImpls point at LayerTreeImpl instead of LTHI

cc/picture_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/picture_layer.h"
 #include "cc/picture_layer_impl.h"
 #include "ui/gfx/rect_conversions.h"
 
 namespace cc {
 
 scoped_refptr<PictureLayer> PictureLayer::create(ContentLayerClient* client) {
   return make_scoped_refptr(new PictureLayer(client));
 }
 
 PictureLayer::PictureLayer(ContentLayerClient* client) :
   client_(client) {
 }
 
 PictureLayer::~PictureLayer() {
 }
 
 bool PictureLayer::drawsContent() const {
   return Layer::drawsContent() && client_;
 }
 
-scoped_ptr<LayerImpl> PictureLayer::createLayerImpl(LayerTreeHostImpl* host) {
-  return PictureLayerImpl::create(host, id()).PassAs<LayerImpl>();
+scoped_ptr<LayerImpl> PictureLayer::createLayerImpl(LayerTreeImpl* treeImpl) {
+  return PictureLayerImpl::create(treeImpl, id()).PassAs<LayerImpl>();
 }
 
 void PictureLayer::pushPropertiesTo(LayerImpl* base_layer) {
   Layer::pushPropertiesTo(base_layer);
   PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(base_layer);
   pile_.PushPropertiesTo(layer_impl->pile_);
 
   // TODO(enne): Once we have two trees on the impl side, we need to
   // sync the active layer's tiles prior to this Invalidate call since it
   // will make new tiles for anything intersecting the invalidation.
@@ skipping 16 matching lines @@
 
   // Calling paint in WebKit can sometimes cause invalidations, so save
   // off the invalidation prior to calling update.
   pile_invalidation_.Swap(pending_invalidation_);
   pending_invalidation_.Clear();
 
   pile_.Update(client_, pile_invalidation_, stats);
 }
 
 }  // namespace cc