CC Animation: Erase AnimationRegistrar

cc/trees/layer_tree_host.cc

 // Copyright 2011 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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 346 matching lines @@
 
     // Proxy must be destroyed before the Task Runner Provider.
     proxy_ = nullptr;
   }
 
   // We must clear any pointers into the layer tree prior to destroying it.
   RegisterViewportLayers(NULL, NULL, NULL, NULL);
 
   if (root_layer_.get()) {
     // The layer tree must be destroyed before the layer tree host. We've
-    // made a contract with our animation controllers that the registrar
+    // made a contract with our animation controllers that the animation_host
     // will outlive them, and we must make good.
     root_layer_ = NULL;
   }
 }
 
 void LayerTreeHost::WillBeginMainFrame() {
   devtools_instrumentation::WillBeginMainThreadFrame(id(),
                                                      source_frame_number());
   client_->WillBeginMainFrame();
 }
@@ skipping 1259 matching lines @@
       [seq_num](Layer* layer) {
         layer->set_property_tree_sequence_number(seq_num);
       },
       CallFunctionLayerType::ALL_LAYERS);
 
   surface_id_namespace_ = proto.surface_id_namespace();
   next_surface_sequence_ = proto.next_surface_sequence();
 }
 
 }  // namespace cc