cc: Merge LayerTree into the LayerTreeHost.

third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp

 // Copyright 2015 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 "platform/graphics/compositing/PropertyTreeManager.h"
 
 #include "cc/layers/layer.h"
 #include "cc/trees/clip_node.h"
 #include "cc/trees/effect_node.h"
+#include "cc/trees/layer_tree_host.h"
 #include "cc/trees/property_tree.h"
 #include "cc/trees/scroll_node.h"
 #include "cc/trees/transform_node.h"
 #include "platform/graphics/paint/ClipPaintPropertyNode.h"
 #include "platform/graphics/paint/EffectPaintPropertyNode.h"
 #include "platform/graphics/paint/GeometryMapper.h"
 #include "platform/graphics/paint/ScrollPaintPropertyNode.h"
 #include "platform/graphics/paint/TransformPaintPropertyNode.h"
 
 namespace blink {
@@ skipping 46 matching lines @@
   cc::TransformNode& transformNode = *transformTree.Node(
       transformTree.Insert(cc::TransformNode(), kRealRootNodeId));
   DCHECK_EQ(transformNode.id, kSecondaryRootNodeId);
   transformNode.source_node_id = transformNode.parent_id;
   transformTree.SetTargetId(transformNode.id, kRealRootNodeId);
   transformTree.SetContentTargetId(transformNode.id, kRealRootNodeId);
 
   // TODO(jaydasika): We shouldn't set ToScreen and FromScreen of root
   // transform node here. They should be set while updating transform tree in
   // cc.
-  float deviceScaleFactor = m_rootLayer->GetLayerTree()->device_scale_factor();
+  float deviceScaleFactor =
+      m_rootLayer->layer_tree_host()->device_scale_factor();
   gfx::Transform toScreen;
   toScreen.Scale(deviceScaleFactor, deviceScaleFactor);
   transformTree.SetToScreen(kRealRootNodeId, toScreen);
   gfx::Transform fromScreen;
   bool invertible = toScreen.GetInverse(&fromScreen);
   DCHECK(invertible);
   transformTree.SetFromScreen(kRealRootNodeId, fromScreen);
   transformTree.set_needs_update(true);
 
   m_transformNodeMap.set(TransformPaintPropertyNode::root(), transformNode.id);
   m_rootLayer->SetTransformTreeIndex(transformNode.id);
 }
 
 void PropertyTreeManager::setupRootClipNode() {
   // cc is hardcoded to use clip node index 1 for viewport clip.
   cc::ClipTree& clipTree = m_propertyTrees.clip_tree;
   clipTree.clear();
   m_propertyTrees.layer_id_to_clip_node_index.clear();
   cc::ClipNode& clipNode =
       *clipTree.Node(clipTree.Insert(cc::ClipNode(), kRealRootNodeId));
   DCHECK_EQ(clipNode.id, kSecondaryRootNodeId);
 
   clipNode.resets_clip = true;
   clipNode.owning_layer_id = m_rootLayer->id();
   clipNode.clip_type = cc::ClipNode::ClipType::APPLIES_LOCAL_CLIP;
   clipNode.clip = gfx::RectF(
-      gfx::SizeF(m_rootLayer->GetLayerTree()->device_viewport_size()));
+      gfx::SizeF(m_rootLayer->layer_tree_host()->device_viewport_size()));
   clipNode.transform_id = kRealRootNodeId;
   clipNode.target_transform_id = kRealRootNodeId;
   clipNode.target_effect_id = kSecondaryRootNodeId;
   m_propertyTrees.layer_id_to_clip_node_index[clipNode.owning_layer_id] =
       clipNode.id;
 
   m_clipNodeMap.set(ClipPaintPropertyNode::root(), clipNode.id);
   m_rootLayer->SetClipTreeIndex(clipNode.id);
 }
 
@@ skipping 290 matching lines @@
   m_effectStack.push_back(BlinkEffectAndCcIdPair{nextEffect, effectNode.id});
 
   dummyLayer->set_property_tree_sequence_number(kPropertyTreeSequenceNumber);
   dummyLayer->SetTransformTreeIndex(kSecondaryRootNodeId);
   dummyLayer->SetClipTreeIndex(outputClipId);
   dummyLayer->SetEffectTreeIndex(effectNode.id);
   dummyLayer->SetScrollTreeIndex(kRealRootNodeId);
 }
 
 }  // namespace blink