Get rid of graphics layer anchor points, and replace with transform origin.

cc/layers/layer.h

 // 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>
 
@@ skipping 11 matching lines @@
 #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/output/filter_operations.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/point3_f.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/rect_f.h"
 #include "ui/gfx/transform.h"
 
 namespace gfx {
 class BoxF;
 }
 
 namespace base {
 namespace debug {
@@ skipping 54 matching lines @@
   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 NULL/empty result.
   void RequestCopyOfOutput(scoped_ptr<CopyOutputRequest> request);
   bool HasCopyRequest() const {
     return !copy_requests_.empty();
   }
 
-  void SetAnchorPoint(const gfx::PointF& anchor_point);
-  gfx::PointF anchor_point() const { return anchor_point_; }
-
-  void SetAnchorPointZ(float anchor_point_z);
-  float anchor_point_z() const { return anchor_point_z_; }
-
   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_; }
@@ skipping 53 matching lines @@
   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 transform_is_invertible() const { return transform_is_invertible_; }
 
+  void SetTransformOrigin(const gfx::Point3F&);
+  gfx::Point3F transform_origin() { 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 {
@@ skipping 393 matching lines @@
   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 is_3d_sorted_ : 1;
   bool transform_is_invertible_ : 1;
   Region non_fast_scrollable_region_;
   Region touch_event_handler_region_;
   gfx::PointF position_;
-  gfx::PointF anchor_point_;
   SkColor background_color_;
   float opacity_;
   SkXfermode::Mode blend_mode_;
   FilterOperations filters_;
   FilterOperations background_filters_;
-  float anchor_point_z_;
   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_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_H_