Remove parts of //cc we aren't using

cc/layers/layer.h

Index: cc/layers/layer.h
diff --git a/cc/layers/layer.h b/cc/layers/layer.h
deleted file mode 100644
index 4c03e3178e2e82f0ff68bc95c6c913f7c2684d7b..0000000000000000000000000000000000000000
--- a/cc/layers/layer.h
+++ /dev/null
@@ -1,735 +0,0 @@
-// Copyright 2010 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.
-
-#ifndef CC_LAYERS_LAYER_H_
-#define CC_LAYERS_LAYER_H_
-
-#include <set>
-#include <string>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/observer_list.h"
-#include "cc/animation/layer_animation_controller.h"
-#include "cc/animation/layer_animation_value_observer.h"
-#include "cc/animation/layer_animation_value_provider.h"
-#include "cc/base/cc_export.h"
-#include "cc/base/region.h"
-#include "cc/base/scoped_ptr_vector.h"
-#include "cc/debug/frame_timing_request.h"
-#include "cc/debug/micro_benchmark.h"
-#include "cc/layers/draw_properties.h"
-#include "cc/layers/layer_lists.h"
-#include "cc/layers/layer_position_constraint.h"
-#include "cc/layers/paint_properties.h"
-#include "cc/layers/render_surface.h"
-#include "cc/layers/scroll_blocks_on.h"
-#include "cc/output/filter_operations.h"
-#include "cc/trees/property_tree.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-#include "third_party/skia/include/core/SkPicture.h"
-#include "third_party/skia/include/core/SkXfermode.h"
-#include "ui/gfx/geometry/point3_f.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/geometry/rect_f.h"
-#include "ui/gfx/geometry/scroll_offset.h"
-#include "ui/gfx/transform.h"
-
-namespace gfx {
-class BoxF;
-}
-
-namespace base {
-namespace trace_event {
-class ConvertableToTraceFormat;
-}
-}
-
-namespace cc {
-
-class Animation;
-class AnimationDelegate;
-struct AnimationEvent;
-class CopyOutputRequest;
-class LayerAnimationDelegate;
-class LayerAnimationEventObserver;
-class LayerClient;
-class LayerImpl;
-class LayerTreeHost;
-class LayerTreeHostCommon;
-class LayerTreeImpl;
-class PriorityCalculator;
-class RenderingStatsInstrumentation;
-class ResourceUpdateQueue;
-class ScrollbarLayerInterface;
-class SimpleEnclosedRegion;
-struct AnimationEvent;
-template <typename LayerType>
-class OcclusionTracker;
-
-// Base class for composited layers. Special layer types are derived from
-// this class.
-class CC_EXPORT Layer : public base::RefCounted<Layer>,
-                        public LayerAnimationValueObserver,
-                        public LayerAnimationValueProvider {
- public:
-  typedef RenderSurfaceLayerList RenderSurfaceListType;
-  typedef LayerList LayerListType;
-  typedef RenderSurface RenderSurfaceType;
-
-  enum LayerIdLabels {
-    INVALID_ID = -1,
-  };
-
-  static scoped_refptr<Layer> Create();
-
-  int id() const { return layer_id_; }
-
-  Layer* RootLayer();
-  Layer* parent() { return parent_; }
-  const Layer* parent() const { return parent_; }
-  void AddChild(scoped_refptr<Layer> child);
-  void InsertChild(scoped_refptr<Layer> child, size_t index);
-  void ReplaceChild(Layer* reference, scoped_refptr<Layer> new_layer);
-  void RemoveFromParent();
-  void RemoveAllChildren();
-  void SetChildren(const LayerList& children);
-  bool HasAncestor(const Layer* ancestor) const;
-
-  const LayerList& children() const { return children_; }
-  Layer* child_at(size_t index) { return children_[index].get(); }
-
-  // This requests the layer and its subtree be rendered and given to the
-  // callback. If the copy is unable to be produced (the layer is destroyed
-  // first), then the callback is called with a nullptr/empty result.
-  void RequestCopyOfOutput(scoped_ptr<CopyOutputRequest> request);
-  bool HasCopyRequest() const {
-    return !copy_requests_.empty();
-  }
-
-  virtual void SetBackgroundColor(SkColor background_color);
-  SkColor background_color() const { return background_color_; }
-  // If contents_opaque(), return an opaque color else return a
-  // non-opaque color.  Tries to return background_color(), if possible.
-  SkColor SafeOpaqueBackgroundColor() const;
-
-  // A layer's bounds are in logical, non-page-scaled pixels (however, the
-  // root layer's bounds are in physical pixels).
-  void SetBounds(const gfx::Size& bounds);
-  gfx::Size bounds() const { return bounds_; }
-
-  void SetMasksToBounds(bool masks_to_bounds);
-  bool masks_to_bounds() const { return masks_to_bounds_; }
-
-  void SetMaskLayer(Layer* mask_layer);
-  Layer* mask_layer() { return mask_layer_.get(); }
-  const Layer* mask_layer() const { return mask_layer_.get(); }
-
-  virtual void SetNeedsDisplayRect(const gfx::Rect& dirty_rect);
-  void SetNeedsDisplay() { SetNeedsDisplayRect(gfx::Rect(bounds())); }
-
-  void SetOpacity(float opacity);
-  float opacity() const { return opacity_; }
-  bool OpacityIsAnimating() const;
-  virtual bool OpacityCanAnimateOnImplThread() const;
-
-  void SetBlendMode(SkXfermode::Mode blend_mode);
-  SkXfermode::Mode blend_mode() const { return blend_mode_; }
-
-  bool uses_default_blend_mode() const {
-    return blend_mode_ == SkXfermode::kSrcOver_Mode;
-  }
-
-  // A layer is root for an isolated group when it and all its descendants are
-  // drawn over a black and fully transparent background, creating an isolated
-  // group. It should be used along with SetBlendMode(), in order to restrict
-  // layers within the group to blend with layers outside this group.
-  void SetIsRootForIsolatedGroup(bool root);
-  bool is_root_for_isolated_group() const {
-    return is_root_for_isolated_group_;
-  }
-
-  void SetFilters(const FilterOperations& filters);
-  const FilterOperations& filters() const { return filters_; }
-  bool FilterIsAnimating() const;
-
-  // Background filters are filters applied to what is behind this layer, when
-  // they are viewed through non-opaque regions in this layer. They are used
-  // through the WebLayer interface, and are not exposed to HTML.
-  void SetBackgroundFilters(const FilterOperations& filters);
-  const FilterOperations& background_filters() const {
-    return background_filters_;
-  }
-
-  virtual void SetContentsOpaque(bool opaque);
-  bool contents_opaque() const { return contents_opaque_; }
-
-  void SetPosition(const gfx::PointF& position);
-  gfx::PointF position() const { return position_; }
-
-  void SetIsContainerForFixedPositionLayers(bool container);
-  bool IsContainerForFixedPositionLayers() const;
-
-  gfx::Vector2dF FixedContainerSizeDelta() const {
-    return gfx::Vector2dF();
-  }
-
-  void SetPositionConstraint(const LayerPositionConstraint& constraint);
-  const LayerPositionConstraint& position_constraint() const {
-    return position_constraint_;
-  }
-
-  void SetTransform(const gfx::Transform& transform);
-  const gfx::Transform& transform() const { return transform_; }
-  bool TransformIsAnimating() const;
-  bool AnimationsPreserveAxisAlignment() const;
-  bool transform_is_invertible() const { return transform_is_invertible_; }
-
-  void SetTransformOrigin(const gfx::Point3F&);
-  gfx::Point3F transform_origin() const { return transform_origin_; }
-
-  void SetScrollParent(Layer* parent);
-
-  Layer* scroll_parent() { return scroll_parent_; }
-  const Layer* scroll_parent() const { return scroll_parent_; }
-
-  void AddScrollChild(Layer* child);
-  void RemoveScrollChild(Layer* child);
-
-  std::set<Layer*>* scroll_children() { return scroll_children_.get(); }
-  const std::set<Layer*>* scroll_children() const {
-    return scroll_children_.get();
-  }
-
-  void SetClipParent(Layer* ancestor);
-
-  Layer* clip_parent() { return clip_parent_; }
-  const Layer* clip_parent() const {
-    return clip_parent_;
-  }
-
-  void AddClipChild(Layer* child);
-  void RemoveClipChild(Layer* child);
-
-  std::set<Layer*>* clip_children() { return clip_children_.get(); }
-  const std::set<Layer*>* clip_children() const {
-    return clip_children_.get();
-  }
-
-  DrawProperties<Layer>& draw_properties() { return draw_properties_; }
-  const DrawProperties<Layer>& draw_properties() const {
-    return draw_properties_;
-  }
-
-  // The following are shortcut accessors to get various information from
-  // draw_properties_
-  const gfx::Transform& draw_transform() const {
-    return draw_properties_.target_space_transform;
-  }
-  const gfx::Transform& screen_space_transform() const {
-    return draw_properties_.screen_space_transform;
-  }
-  float draw_opacity() const { return draw_properties_.opacity; }
-  bool draw_opacity_is_animating() const {
-    return draw_properties_.opacity_is_animating;
-  }
-  bool draw_transform_is_animating() const {
-    return draw_properties_.target_space_transform_is_animating;
-  }
-  bool screen_space_transform_is_animating() const {
-    return draw_properties_.screen_space_transform_is_animating;
-  }
-  bool screen_space_opacity_is_animating() const {
-    return draw_properties_.screen_space_opacity_is_animating;
-  }
-  bool is_clipped() const { return draw_properties_.is_clipped; }
-  gfx::Rect clip_rect() const { return draw_properties_.clip_rect; }
-  gfx::Rect drawable_content_rect() const {
-    return draw_properties_.drawable_content_rect;
-  }
-  gfx::Rect visible_content_rect() const {
-    return draw_properties_.visible_content_rect;
-  }
-  Layer* render_target() {
-    DCHECK(!draw_properties_.render_target ||
-           draw_properties_.render_target->render_surface());
-    return draw_properties_.render_target;
-  }
-  const Layer* render_target() const {
-    DCHECK(!draw_properties_.render_target ||
-           draw_properties_.render_target->render_surface());
-    return draw_properties_.render_target;
-  }
-  int num_unclipped_descendants() const {
-    return draw_properties_.num_unclipped_descendants;
-  }
-
-  RenderSurface* render_surface() const { return render_surface_.get(); }
-  void SetScrollOffset(const gfx::ScrollOffset& scroll_offset);
-  void SetScrollCompensationAdjustment(
-      const gfx::Vector2dF& scroll_compensation_adjustment);
-  gfx::Vector2dF ScrollCompensationAdjustment() const;
-
-  gfx::ScrollOffset scroll_offset() const { return scroll_offset_; }
-  void SetScrollOffsetFromImplSide(const gfx::ScrollOffset& scroll_offset);
-
-  void SetScrollClipLayerId(int clip_layer_id);
-  bool scrollable() const { return scroll_clip_layer_id_ != INVALID_ID; }
-
-  void SetUserScrollable(bool horizontal, bool vertical);
-  bool user_scrollable_horizontal() const {
-    return user_scrollable_horizontal_;
-  }
-  bool user_scrollable_vertical() const { return user_scrollable_vertical_; }
-
-  void SetShouldScrollOnMainThread(bool should_scroll_on_main_thread);
-  bool should_scroll_on_main_thread() const {
-    return should_scroll_on_main_thread_;
-  }
-
-  void SetHaveWheelEventHandlers(bool have_wheel_event_handlers);
-  bool have_wheel_event_handlers() const { return have_wheel_event_handlers_; }
-
-  void SetHaveScrollEventHandlers(bool have_scroll_event_handlers);
-  bool have_scroll_event_handlers() const {
-    return have_scroll_event_handlers_;
-  }
-
-  void SetNonFastScrollableRegion(const Region& non_fast_scrollable_region);
-  const Region& non_fast_scrollable_region() const {
-    return non_fast_scrollable_region_;
-  }
-
-  void SetTouchEventHandlerRegion(const Region& touch_event_handler_region);
-  const Region& touch_event_handler_region() const {
-    return touch_event_handler_region_;
-  }
-
-  void SetScrollBlocksOn(ScrollBlocksOn scroll_blocks_on);
-  ScrollBlocksOn scroll_blocks_on() const { return scroll_blocks_on_; }
-
-  void set_did_scroll_callback(const base::Closure& callback) {
-    did_scroll_callback_ = callback;
-  }
-
-  void SetDrawCheckerboardForMissingTiles(bool checkerboard);
-  bool draw_checkerboard_for_missing_tiles() const {
-    return draw_checkerboard_for_missing_tiles_;
-  }
-
-  void SetForceRenderSurface(bool force_render_surface);
-  bool force_render_surface() const { return force_render_surface_; }
-
-  gfx::Vector2dF ScrollDelta() const { return gfx::Vector2dF(); }
-  gfx::ScrollOffset CurrentScrollOffset() const { return scroll_offset_; }
-
-  void SetDoubleSided(bool double_sided);
-  bool double_sided() const { return double_sided_; }
-
-  void SetShouldFlattenTransform(bool flatten);
-  bool should_flatten_transform() const { return should_flatten_transform_; }
-
-  bool Is3dSorted() const { return sorting_context_id_ != 0; }
-
-  void set_use_parent_backface_visibility(bool use) {
-    use_parent_backface_visibility_ = use;
-  }
-  bool use_parent_backface_visibility() const {
-    return use_parent_backface_visibility_;
-  }
-
-  virtual void SetLayerTreeHost(LayerTreeHost* host);
-
-  virtual bool HasDelegatedContent() const;
-  bool HasContributingDelegatedRenderPasses() const { return false; }
-
-  void SetIsDrawable(bool is_drawable);
-
-  void SetHideLayerAndSubtree(bool hide);
-  bool hide_layer_and_subtree() const { return hide_layer_and_subtree_; }
-
-  void SetReplicaLayer(Layer* layer);
-  Layer* replica_layer() { return replica_layer_.get(); }
-  const Layer* replica_layer() const { return replica_layer_.get(); }
-
-  bool has_mask() const { return !!mask_layer_.get(); }
-  bool has_replica() const { return !!replica_layer_.get(); }
-  bool replica_has_mask() const {
-    return replica_layer_.get() &&
-           (mask_layer_.get() || replica_layer_->mask_layer_.get());
-  }
-
-  int NumDescendantsThatDrawContent() const;
-
-  // This is only virtual for tests.
-  // TODO(awoloszyn): Remove this once we no longer need it for tests
-  virtual bool DrawsContent() const;
-
-  // This methods typically need to be overwritten by derived classes.
-  virtual void SavePaintProperties();
-  // Returns true iff any resources were updated that need to be committed.
-  virtual bool Update(ResourceUpdateQueue* queue,
-                      const OcclusionTracker<Layer>* occlusion);
-  virtual bool NeedMoreUpdates();
-  virtual void SetIsMask(bool is_mask) {}
-  virtual void ReduceMemoryUsage() {}
-  virtual void OnOutputSurfaceCreated() {}
-  virtual bool IsSuitableForGpuRasterization() const;
-
-  virtual scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-  TakeDebugInfo();
-
-  void SetLayerClient(LayerClient* client) { client_ = client; }
-
-  virtual void PushPropertiesTo(LayerImpl* layer);
-
-  void CreateRenderSurface();
-  void ClearRenderSurface();
-
-  void ClearRenderSurfaceLayerList();
-
-  // The contents scale converts from logical, non-page-scaled pixels to target
-  // pixels. The contents scale is 1 for the root layer as it is already in
-  // physical pixels. By default contents scale is forced to be 1 except for
-  // subclasses of ContentsScalingLayer.
-  float contents_scale_x() const { return draw_properties_.contents_scale_x; }
-  float contents_scale_y() const { return draw_properties_.contents_scale_y; }
-  gfx::Size content_bounds() const { return draw_properties_.content_bounds; }
-
-  virtual void CalculateContentsScale(float ideal_contents_scale,
-                                      float* contents_scale_x,
-                                      float* contents_scale_y,
-                                      gfx::Size* content_bounds);
-
-  LayerTreeHost* layer_tree_host() { return layer_tree_host_; }
-  const LayerTreeHost* layer_tree_host() const { return layer_tree_host_; }
-
-  // Set the priority of all desired textures in this layer.
-  virtual void SetTexturePriorities(const PriorityCalculator& priority_calc) {}
-
-  bool AddAnimation(scoped_ptr<Animation> animation);
-  void PauseAnimation(int animation_id, double time_offset);
-  void RemoveAnimation(int animation_id);
-  void RemoveAnimation(int animation_id, Animation::TargetProperty property);
-
-  LayerAnimationController* layer_animation_controller() {
-    return layer_animation_controller_.get();
-  }
-  void SetLayerAnimationControllerForTest(
-      scoped_refptr<LayerAnimationController> controller);
-
-  void set_layer_animation_delegate(AnimationDelegate* delegate) {
-    layer_animation_controller_->set_layer_animation_delegate(delegate);
-  }
-
-  bool HasActiveAnimation() const;
-
-  void AddLayerAnimationEventObserver(
-      LayerAnimationEventObserver* animation_observer);
-  void RemoveLayerAnimationEventObserver(
-      LayerAnimationEventObserver* animation_observer);
-
-  virtual SimpleEnclosedRegion VisibleContentOpaqueRegion() const;
-
-  virtual ScrollbarLayerInterface* ToScrollbarLayer();
-
-  gfx::Rect LayerRectToContentRect(const gfx::Rect& layer_rect) const;
-
-  virtual skia::RefPtr<SkPicture> GetPicture() const;
-
-  // Constructs a LayerImpl of the correct runtime type for this Layer type.
-  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl);
-
-  bool NeedsDisplayForTesting() const { return !update_rect_.IsEmpty(); }
-  void ResetNeedsDisplayForTesting() { update_rect_ = gfx::Rect(); }
-
-  RenderingStatsInstrumentation* rendering_stats_instrumentation() const;
-
-  const PaintProperties& paint_properties() const {
-    return paint_properties_;
-  }
-
-  // The scale at which contents should be rastered, to match the scale at
-  // which they will drawn to the screen. This scale is a component of the
-  // contents scale but does not include page/device scale factors.
-  // TODO(danakj): This goes away when TiledLayer goes away.
-  void set_raster_scale(float scale) { raster_scale_ = scale; }
-  float raster_scale() const { return raster_scale_; }
-  bool raster_scale_is_unknown() const { return raster_scale_ == 0.f; }
-
-  void SetNeedsPushProperties();
-  bool needs_push_properties() const { return needs_push_properties_; }
-  bool descendant_needs_push_properties() const {
-    return num_dependents_need_push_properties_ > 0;
-  }
-  void reset_needs_push_properties_for_testing() {
-    needs_push_properties_ = false;
-  }
-
-  virtual void RunMicroBenchmark(MicroBenchmark* benchmark);
-
-  void Set3dSortingContextId(int id);
-  int sorting_context_id() const { return sorting_context_id_; }
-
-  void set_transform_tree_index(int index) { transform_tree_index_ = index; }
-  void set_clip_tree_index(int index) { clip_tree_index_ = index; }
-  void set_opacity_tree_index(int index) { opacity_tree_index_ = index; }
-  int clip_tree_index() const { return clip_tree_index_; }
-  int transform_tree_index() const { return transform_tree_index_; }
-  int opacity_tree_index() const { return opacity_tree_index_; }
-
-  void set_offset_to_transform_parent(gfx::Vector2dF offset) {
-    offset_to_transform_parent_ = offset;
-  }
-  gfx::Vector2dF offset_to_transform_parent() const {
-    return offset_to_transform_parent_;
-  }
-
-  // TODO(vollick): Once we transition to transform and clip trees, rename these
-  // functions and related values.  The "from property trees" functions below
-  // use the transform and clip trees.  Eventually, we will use these functions
-  // to compute the official values, but these functions are retained for
-  // testing purposes until we've migrated.
-
-  const gfx::Rect& visible_rect_from_property_trees() const {
-    return visible_rect_from_property_trees_;
-  }
-  void set_visible_rect_from_property_trees(const gfx::Rect& rect) {
-    visible_rect_from_property_trees_ = rect;
-  }
-
-  gfx::Transform screen_space_transform_from_property_trees(
-      const TransformTree& tree) const;
-  gfx::Transform draw_transform_from_property_trees(
-      const TransformTree& tree) const;
-  float DrawOpacityFromPropertyTrees(const OpacityTree& tree) const;
-
-  void set_should_flatten_transform_from_property_tree(bool should_flatten) {
-    should_flatten_transform_from_property_tree_ = should_flatten;
-  }
-
-  // TODO(vollick): These values are temporary and will be removed as soon as
-  // render surface determinations are moved out of CDP. They only exist because
-  // certain logic depends on whether or not a layer would render to a separate
-  // surface, but CDP destroys surfaces and targets it doesn't need, so without
-  // this boolean, this is impossible to determine after the fact without
-  // wastefully recomputing it. This is public for the time being so that it can
-  // be accessed from CDP.
-  bool has_render_surface() const {
-    return has_render_surface_;
-  }
-
-  // Sets new frame timing requests for this layer.
-  void SetFrameTimingRequests(const std::vector<FrameTimingRequest>& requests);
-
-  void DidBeginTracing();
-
- protected:
-  friend class LayerImpl;
-  friend class TreeSynchronizer;
-  ~Layer() override;
-
-  Layer();
-
-  // These SetNeeds functions are in order of severity of update:
-  //
-  // Called when this layer has been modified in some way, but isn't sure
-  // that it needs a commit yet.  It needs CalcDrawProperties and UpdateLayers
-  // before it knows whether or not a commit is required.
-  void SetNeedsUpdate();
-  // Called when a property has been modified in a way that the layer
-  // knows immediately that a commit is required.  This implies SetNeedsUpdate
-  // as well as SetNeedsPushProperties to push that property.
-  void SetNeedsCommit();
-  // Called when there's been a change in layer structure.  Implies both
-  // SetNeedsUpdate and SetNeedsCommit, but not SetNeedsPushProperties.
-  void SetNeedsFullTreeSync();
-
-  // Called when the next commit should wait until the pending tree is activated
-  // before finishing the commit and unblocking the main thread. Used to ensure
-  // unused resources on the impl thread are returned before commit completes.
-  void SetNextCommitWaitsForActivation();
-
-  // Will recalculate whether the layer draws content and set draws_content_
-  // appropriately.
-  void UpdateDrawsContent(bool has_drawable_content);
-  virtual bool HasDrawableContent() const;
-
-  // Called when the layer's number of drawable descendants changes.
-  void AddDrawableDescendants(int num);
-
-  void AddDependentNeedsPushProperties();
-  void RemoveDependentNeedsPushProperties();
-  bool parent_should_know_need_push_properties() const {
-    return needs_push_properties() || descendant_needs_push_properties();
-  }
-
-  bool IsPropertyChangeAllowed() const;
-
-  void reset_raster_scale_to_unknown() { raster_scale_ = 0.f; }
-
-  // This flag is set when the layer needs to push properties to the impl
-  // side.
-  bool needs_push_properties_;
-
-  // The number of direct children or dependent layers that need to be recursed
-  // to in order for them or a descendent of them to push properties to the impl
-  // side.
-  int num_dependents_need_push_properties_;
-
-  // Tracks whether this layer may have changed stacking order with its
-  // siblings.
-  bool stacking_order_changed_;
-
-  // The update rect is the region of the compositor resource that was
-  // actually updated by the compositor. For layers that may do updating
-  // outside the compositor's control (i.e. plugin layers), this information
-  // is not available and the update rect will remain empty.
-  // Note this rect is in layer space (not content space).
-  gfx::Rect update_rect_;
-
-  scoped_refptr<Layer> mask_layer_;
-
-  int layer_id_;
-
-  // When true, the layer is about to perform an update. Any commit requests
-  // will be handled implicitly after the update completes.
-  bool ignore_set_needs_commit_;
-
-  // Layers that share a sorting context id will be sorted together in 3d
-  // space.  0 is a special value that means this layer will not be sorted and
-  // will be drawn in paint order.
-  int sorting_context_id_;
-
- private:
-  friend class base::RefCounted<Layer>;
-  friend class LayerTreeHostCommon;
-  void SetParent(Layer* layer);
-  bool DescendantIsFixedToContainerLayer() const;
-
-  // This should only be called during BeginMainFrame since it does not
-  // trigger a Commit.
-  void SetHasRenderSurface(bool has_render_surface);
-
-  // Returns the index of the child or -1 if not found.
-  int IndexOfChild(const Layer* reference);
-
-  // This should only be called from RemoveFromParent().
-  void RemoveChildOrDependent(Layer* child);
-
-  // LayerAnimationValueProvider implementation.
-  gfx::ScrollOffset ScrollOffsetForAnimation() const override;
-
-  // LayerAnimationValueObserver implementation.
-  void OnFilterAnimated(const FilterOperations& filters) override;
-  void OnOpacityAnimated(float opacity) override;
-  void OnTransformAnimated(const gfx::Transform& transform) override;
-  void OnScrollOffsetAnimated(const gfx::ScrollOffset& scroll_offset) override;
-  void OnAnimationWaitingForDeletion() override;
-  bool IsActive() const override;
-
-  // If this layer has a scroll parent, it removes |this| from its list of
-  // scroll children.
-  void RemoveFromScrollTree();
-
-  // If this layer has a clip parent, it removes |this| from its list of clip
-  // children.
-  void RemoveFromClipTree();
-
-  LayerList children_;
-  Layer* parent_;
-
-  // Layer instances have a weak pointer to their LayerTreeHost.
-  // This pointer value is nil when a Layer is not in a tree and is
-  // updated via SetLayerTreeHost() if a layer moves between trees.
-  LayerTreeHost* layer_tree_host_;
-
-  scoped_refptr<LayerAnimationController> layer_animation_controller_;
-
-  // Layer properties.
-  gfx::Size bounds_;
-
-  gfx::ScrollOffset scroll_offset_;
-  gfx::Vector2dF scroll_compensation_adjustment_;
-  // This variable indicates which ancestor layer (if any) whose size,
-  // transformed relative to this layer, defines the maximum scroll offset for
-  // this layer.
-  int scroll_clip_layer_id_;
-  int num_descendants_that_draw_content_;
-  int transform_tree_index_;
-  int opacity_tree_index_;
-  int clip_tree_index_;
-  gfx::Vector2dF offset_to_transform_parent_;
-  bool should_flatten_transform_from_property_tree_ : 1;
-  bool should_scroll_on_main_thread_ : 1;
-  bool have_wheel_event_handlers_ : 1;
-  bool have_scroll_event_handlers_ : 1;
-  bool user_scrollable_horizontal_ : 1;
-  bool user_scrollable_vertical_ : 1;
-  bool is_root_for_isolated_group_ : 1;
-  bool is_container_for_fixed_position_layers_ : 1;
-  bool is_drawable_ : 1;
-  bool draws_content_ : 1;
-  bool hide_layer_and_subtree_ : 1;
-  bool masks_to_bounds_ : 1;
-  bool contents_opaque_ : 1;
-  bool double_sided_ : 1;
-  bool should_flatten_transform_ : 1;
-  bool use_parent_backface_visibility_ : 1;
-  bool draw_checkerboard_for_missing_tiles_ : 1;
-  bool force_render_surface_ : 1;
-  bool transform_is_invertible_ : 1;
-  bool has_render_surface_ : 1;
-  ScrollBlocksOn scroll_blocks_on_ : 3;
-  Region non_fast_scrollable_region_;
-  Region touch_event_handler_region_;
-  gfx::PointF position_;
-  SkColor background_color_;
-  float opacity_;
-  SkXfermode::Mode blend_mode_;
-  FilterOperations filters_;
-  FilterOperations background_filters_;
-  LayerPositionConstraint position_constraint_;
-  Layer* scroll_parent_;
-  scoped_ptr<std::set<Layer*>> scroll_children_;
-
-  Layer* clip_parent_;
-  scoped_ptr<std::set<Layer*>> clip_children_;
-
-  gfx::Transform transform_;
-  gfx::Point3F transform_origin_;
-
-  // Replica layer used for reflections.
-  scoped_refptr<Layer> replica_layer_;
-
-  // Transient properties.
-  float raster_scale_;
-
-  LayerClient* client_;
-
-  ScopedPtrVector<CopyOutputRequest> copy_requests_;
-
-  base::Closure did_scroll_callback_;
-
-  DrawProperties<Layer> draw_properties_;
-
-  PaintProperties paint_properties_;
-  // TODO(awoloszyn): This is redundant with has_render_surface_,
-  // and should get removed once it is no longer needed on main thread.
-  scoped_ptr<RenderSurface> render_surface_;
-
-  gfx::Rect visible_rect_from_property_trees_;
-
-  std::vector<FrameTimingRequest> frame_timing_requests_;
-  bool frame_timing_requests_dirty_;
-
-  DISALLOW_COPY_AND_ASSIGN(Layer);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_LAYER_H_