cc: Stop cache transform invertibility at Layer and LayerImpl

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index e44a585a1a2f8eeb50ad74a660f976327c7e7f5d..0287bfb1c220711962ff9b812b533cdc2ee49ea4 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -464,9 +464,6 @@ class CC_EXPORT LayerImpl {
   bool TransformIsAnimatingOnImplOnly() const;
   bool HasOnlyTranslationTransforms() const;
   bool AnimationsPreserveAxisAlignment() const;
-  void SetTransformAndInvertibility(const gfx::Transform& transform,
-                                    bool transform_is_invertible);
-  bool transform_is_invertible() const { return transform_is_invertible_; }
 
   bool MaximumTargetScale(float* max_scale) const;
   bool AnimationStartScale(float* start_scale) const;
@@ -674,9 +671,6 @@ class CC_EXPORT LayerImpl {
   bool draws_content_ : 1;
   bool hide_layer_and_subtree_ : 1;
 
-  // Cache transform_'s invertibility.
-  bool transform_is_invertible_ : 1;
-
   // Set for the layer that other layers are fixed to.
   bool is_container_for_fixed_position_layers_ : 1;