Stop displaying layers with non-invertible transforms.

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 162 matching lines @@
   bool IsContainerForFixedPositionLayers() const;
 
   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 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(); }
@@ skipping 386 matching lines @@
   bool is_drawable_ : 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 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_;
@@ skipping 21 matching lines @@
   DrawProperties<Layer> draw_properties_;
 
   PaintProperties paint_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_H_