cc : Clean up cc clip tree

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

Index: third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp b/third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp
index e8e0b2ebf8437faca34781c33f23b80ba62ddbf9..d0d49449e659fa84b3e27f254d2f68f72ec4221c 100644
--- a/third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.cpp
@@ -104,14 +104,11 @@ void PropertyTreeManager::setupRootClipNode() {
       *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->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;
 
@@ -236,11 +233,7 @@ int PropertyTreeManager::ensureCompositorClipNode(
   compositorNode.clip = clipNode->clipRect().rect();
   compositorNode.transform_id =
       ensureCompositorTransformNode(clipNode->localTransformSpace());
-  compositorNode.target_transform_id = kRealRootNodeId;
-  compositorNode.target_effect_id = kSecondaryRootNodeId;
   compositorNode.clip_type = cc::ClipNode::ClipType::APPLIES_LOCAL_CLIP;
-  compositorNode.layers_are_clipped = true;
-  compositorNode.layers_are_clipped_when_surfaces_disabled = true;
 
   m_rootLayer->AddChild(dummyLayer);
   dummyLayer->SetTransformTreeIndex(compositorNode.transform_id);