cc: Remove unused proto conversion code.

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index a57a4b9f34e016a06850f799dc371c142c4a7d4d..67c099c8253d242ff9b65d7b77a3a3fbabb05dba 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -20,7 +20,6 @@
 #include "cc/input/main_thread_scrolling_reason.h"
 #include "cc/layers/layer_client.h"
 #include "cc/layers/layer_impl.h"
-#include "cc/layers/layer_proto_converter.h"
 #include "cc/layers/scrollbar_layer_interface.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
@@ -1245,88 +1244,10 @@ void Layer::ToLayerNodeProto(proto::LayerNode* proto) const {
     inputs_.mask_layer->ToLayerNodeProto(proto->mutable_mask_layer());
 }
 
-void Layer::ClearLayerTreePropertiesForDeserializationAndAddToMap(
-    LayerIdMap* layer_map) {
-  (*layer_map)[inputs_.layer_id] = this;
-
-  if (layer_tree_)
-    layer_tree_->UnregisterLayer(this);
-
-  layer_tree_host_ = nullptr;
-  layer_tree_ = nullptr;
-
-  parent_ = nullptr;
-
-  // Clear these properties for all the children and add them to the map.
-  for (auto& child : inputs_.children) {
-    child->ClearLayerTreePropertiesForDeserializationAndAddToMap(layer_map);
-  }
-
-  inputs_.children.clear();
-
-  if (inputs_.mask_layer) {
-    inputs_.mask_layer->ClearLayerTreePropertiesForDeserializationAndAddToMap(
-        layer_map);
-    inputs_.mask_layer = nullptr;
-  }
-}
-
-void Layer::FromLayerNodeProto(const proto::LayerNode& proto,
-                               const LayerIdMap& layer_map,
-                               LayerTreeHost* layer_tree_host) {
-  DCHECK(!layer_tree_host_);
-  DCHECK(inputs_.children.empty());
-  DCHECK(!inputs_.mask_layer);
-  DCHECK(layer_tree_host);
-  DCHECK(proto.has_id());
-
-  inputs_.layer_id = proto.id();
-
-  layer_tree_host_ = layer_tree_host;
-  layer_tree_ = layer_tree_host->GetLayerTree();
-  layer_tree_->RegisterLayer(this);
-
-  for (int i = 0; i < proto.children_size(); ++i) {
-    const proto::LayerNode& child_proto = proto.children(i);
-    DCHECK(child_proto.has_type());
-    scoped_refptr<Layer> child =
-        LayerProtoConverter::FindOrAllocateAndConstruct(child_proto, layer_map);
-    // The child must now refer to this layer as its parent, and must also have
-    // the same LayerTreeHost. This must be done before deserializing children.
-    DCHECK(!child->parent_);
-    child->parent_ = this;
-    child->FromLayerNodeProto(child_proto, layer_map, layer_tree_host_);
-    inputs_.children.push_back(child);
-  }
-
-  if (proto.has_mask_layer()) {
-    inputs_.mask_layer = LayerProtoConverter::FindOrAllocateAndConstruct(
-        proto.mask_layer(), layer_map);
-    inputs_.mask_layer->parent_ = this;
-    inputs_.mask_layer->FromLayerNodeProto(proto.mask_layer(), layer_map,
-                                           layer_tree_host_);
-  }
-}
-
-void Layer::ToLayerPropertiesProto(proto::LayerUpdate* layer_update,
-                                   bool inputs_only) {
-  // Always set properties metadata for serialized layers.
-  proto::LayerProperties* proto = layer_update->add_layers();
+void Layer::ToLayerPropertiesProto(proto::LayerProperties* proto) {
   proto->set_id(inputs_.layer_id);
-  LayerSpecificPropertiesToProto(proto, inputs_only);
-}
-
-void Layer::FromLayerPropertiesProto(const proto::LayerProperties& proto) {
-  DCHECK(proto.has_id());
-  DCHECK_EQ(inputs_.layer_id, proto.id());
-  FromLayerSpecificPropertiesProto(proto);
-}
 
-void Layer::LayerSpecificPropertiesToProto(proto::LayerProperties* proto,
-                                           bool inputs_only) {
   proto::BaseLayerProperties* base = proto->mutable_base();
-
-  // Layer::Inputs Serialization ---------------------------------
   RectToProto(inputs_.update_rect, base->mutable_update_rect());
   inputs_.update_rect = gfx::Rect();
 
@@ -1381,160 +1302,6 @@ void Layer::LayerSpecificPropertiesToProto(proto::LayerProperties* proto,
 
   // TODO(nyquist): Add support for serializing FilterOperations for
   // |filters_| and |background_filters_|. See crbug.com/541321.
-
-  if (inputs_only)
-    return;
-  // -----------------------------------------------------------
-
-  // TODO(khushalsagar): Stop serializing the data below when crbug.com/648442.
-
-  base->set_safe_opaque_background_color(safe_opaque_background_color_);
-  // TODO(nyquist): Figure out what to do with debug info. See crbug.com/570372.
-  base->set_transform_free_index(transform_tree_index_);
-  base->set_effect_tree_index(effect_tree_index_);
-  base->set_clip_tree_index(clip_tree_index_);
-  base->set_scroll_tree_index(scroll_tree_index_);
-  Vector2dFToProto(offset_to_transform_parent_,
-                   base->mutable_offset_to_transform_parent());
-  base->set_draws_content(draws_content_);
-  base->set_may_contain_video(may_contain_video_);
-  base->set_hide_layer_and_subtree(inputs_.hide_layer_and_subtree);
-  base->set_subtree_property_changed(subtree_property_changed_);
-
-  // TODO(nyquist): Add support for serializing FilterOperations for
-  // |filters_| and |background_filters_|. See crbug.com/541321.
-
-  base->set_masks_to_bounds(inputs_.masks_to_bounds);
-  base->set_main_thread_scrolling_reasons(
-      inputs_.main_thread_scrolling_reasons);
-  RegionToProto(inputs_.non_fast_scrollable_region,
-                base->mutable_non_fast_scrollable_region());
-  RegionToProto(inputs_.touch_event_handler_region,
-                base->mutable_touch_event_handler_region());
-  base->set_contents_opaque(inputs_.contents_opaque);
-  base->set_opacity(inputs_.opacity);
-  base->set_blend_mode(SkXfermodeModeToProto(inputs_.blend_mode));
-  base->set_is_root_for_isolated_group(inputs_.is_root_for_isolated_group);
-  PointFToProto(inputs_.position, base->mutable_position());
-  base->set_is_container_for_fixed_position_layers(
-      inputs_.is_container_for_fixed_position_layers);
-  inputs_.position_constraint.ToProtobuf(base->mutable_position_constraint());
-  base->set_should_flatten_transform(inputs_.should_flatten_transform);
-  base->set_should_flatten_transform_from_property_tree(
-      should_flatten_transform_from_property_tree_);
-  base->set_draw_blend_mode(SkXfermodeModeToProto(draw_blend_mode_));
-  base->set_num_descendants_that_draw_content(
-      num_descendants_that_draw_content_);
-  if (scroll_children_) {
-    for (auto* child : *scroll_children_)
-      base->add_scroll_children_ids(child->id());
-  }
-  if (clip_children_) {
-    for (auto* child : *clip_children_)
-      base->add_clip_children_ids(child->id());
-  }
-
-  // TODO(nyquist): Figure out what to do with CopyRequests.
-  // See crbug.com/570374.
-
-  // TODO(nyquist): Figure out what to do with ElementAnimations.
-  // See crbug.com/570376.
-}
-
-void Layer::FromLayerSpecificPropertiesProto(
-    const proto::LayerProperties& proto) {
-  DCHECK(proto.has_base());
-  DCHECK(layer_tree_host_);
-  const proto::BaseLayerProperties& base = proto.base();
-
-  inputs_.transform_origin = ProtoToPoint3F(base.transform_origin());
-  inputs_.background_color = base.background_color();
-  safe_opaque_background_color_ = base.safe_opaque_background_color();
-  inputs_.bounds = ProtoToSize(base.bounds());
-
-  transform_tree_index_ = base.transform_free_index();
-  effect_tree_index_ = base.effect_tree_index();
-  clip_tree_index_ = base.clip_tree_index();
-  scroll_tree_index_ = base.scroll_tree_index();
-  offset_to_transform_parent_ =
-      ProtoToVector2dF(base.offset_to_transform_parent());
-  inputs_.double_sided = base.double_sided();
-  draws_content_ = base.draws_content();
-  may_contain_video_ = base.may_contain_video();
-  inputs_.hide_layer_and_subtree = base.hide_layer_and_subtree();
-  subtree_property_changed_ = base.subtree_property_changed();
-  inputs_.masks_to_bounds = base.masks_to_bounds();
-  inputs_.main_thread_scrolling_reasons = base.main_thread_scrolling_reasons();
-  inputs_.non_fast_scrollable_region =
-      RegionFromProto(base.non_fast_scrollable_region());
-  inputs_.touch_event_handler_region =
-      RegionFromProto(base.touch_event_handler_region());
-  inputs_.contents_opaque = base.contents_opaque();
-  inputs_.opacity = base.opacity();
-  inputs_.blend_mode = SkXfermodeModeFromProto(base.blend_mode());
-  inputs_.is_root_for_isolated_group = base.is_root_for_isolated_group();
-  inputs_.position = ProtoToPointF(base.position());
-  inputs_.is_container_for_fixed_position_layers =
-      base.is_container_for_fixed_position_layers();
-  inputs_.position_constraint.FromProtobuf(base.position_constraint());
-  inputs_.should_flatten_transform = base.should_flatten_transform();
-  should_flatten_transform_from_property_tree_ =
-      base.should_flatten_transform_from_property_tree();
-  draw_blend_mode_ = SkXfermodeModeFromProto(base.draw_blend_mode());
-  inputs_.use_parent_backface_visibility =
-      base.use_parent_backface_visibility();
-  inputs_.transform = ProtoToTransform(base.transform());
-  inputs_.sorting_context_id = base.sorting_context_id();
-  num_descendants_that_draw_content_ = base.num_descendants_that_draw_content();
-
-  inputs_.scroll_clip_layer_id = base.scroll_clip_layer_id();
-  inputs_.user_scrollable_horizontal = base.user_scrollable_horizontal();
-  inputs_.user_scrollable_vertical = base.user_scrollable_vertical();
-
-  inputs_.scroll_parent = base.scroll_parent_id() == INVALID_ID
-                              ? nullptr
-                              : layer_tree_->LayerById(base.scroll_parent_id());
-
-  // If there have been scroll children entries in previous deserializations,
-  // clear out the set. If there have been none, initialize the set of children.
-  // After this, the set is in the correct state to only add the new children.
-  // If the set of children has not changed, for now this code still rebuilds
-  // the set.
-  if (scroll_children_)
-    scroll_children_->clear();
-  else if (base.scroll_children_ids_size() > 0)
-    scroll_children_.reset(new std::set<Layer*>);
-  for (int i = 0; i < base.scroll_children_ids_size(); ++i) {
-    int child_id = base.scroll_children_ids(i);
-    scoped_refptr<Layer> child = layer_tree_->LayerById(child_id);
-    scroll_children_->insert(child.get());
-  }
-
-  inputs_.clip_parent = base.clip_parent_id() == INVALID_ID
-                            ? nullptr
-                            : layer_tree_->LayerById(base.clip_parent_id());
-
-  // If there have been clip children entries in previous deserializations,
-  // clear out the set. If there have been none, initialize the set of children.
-  // After this, the set is in the correct state to only add the new children.
-  // If the set of children has not changed, for now this code still rebuilds
-  // the set.
-  if (clip_children_)
-    clip_children_->clear();
-  else if (base.clip_children_ids_size() > 0)
-    clip_children_.reset(new std::set<Layer*>);
-  for (int i = 0; i < base.clip_children_ids_size(); ++i) {
-    int child_id = base.clip_children_ids(i);
-    scoped_refptr<Layer> child = layer_tree_->LayerById(child_id);
-    clip_children_->insert(child.get());
-  }
-
-  inputs_.scroll_offset = ProtoToScrollOffset(base.scroll_offset());
-
-  inputs_.update_rect.Union(ProtoToRect(base.update_rect()));
-
-  inputs_.has_will_change_transform_hint =
-      base.has_will_change_transform_hint();
 }
 
 std::unique_ptr<LayerImpl> Layer::CreateLayerImpl(LayerTreeImpl* tree_impl) {