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

cc/trees/layer_tree_host_unittest_occlusion.cc

 // Copyright 2012 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.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "cc/layers/layer.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/test/layer_tree_test.h"
@@ skipping 77 matching lines @@
                                     const gfx::PointF& position,
                                     const gfx::Size& bounds,
                                     bool opaque) const {
     layer->RemoveAllChildren();
     if (parent)
       parent->AddChild(layer);
     layer->SetTransform(transform);
     layer->SetPosition(position);
     layer->SetBounds(bounds);
     layer->SetContentsOpaque(opaque);
-
-    layer->SetAnchorPoint(gfx::PointF());
   }
 
  protected:
   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
     settings->minimum_occlusion_tracking_size = gfx::Size();
   }
 
   scoped_refptr<TestLayer> root_;
   scoped_refptr<TestLayer> child_;
   scoped_refptr<TestLayer> child2_;
@@ skipping 503 matching lines @@
 
     layer_tree_host()->SetRootLayer(layers[0]);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestManySurfaces);
 
 }  // namespace
 }  // namespace cc