cc: Remove unused proto conversion code.

cc/test/push_properties_counting_layer.h

 // Copyright 2016 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_TEST_PUSH_PROPERTIES_COUNTING_LAYER_H_
 #define CC_TEST_PUSH_PROPERTIES_COUNTING_LAYER_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "cc/layers/layer.h"
 #include "cc/proto/layer.pb.h"
 
 namespace cc {
 
 class LayerImpl;
 class LayerTreeImpl;
 
 class PushPropertiesCountingLayer : public Layer {
  public:
   static scoped_refptr<PushPropertiesCountingLayer> Create();
 
   // Layer implementation.
   void PushPropertiesTo(LayerImpl* layer) override;
   std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
-  void ToLayerPropertiesProto(proto::LayerUpdate* layer_update,
-                              bool inputs_only) override;
+  void ToLayerPropertiesProto(proto::LayerProperties* proto) override;
   void SetTypeForProtoSerialization(proto::LayerNode* proto) const override;
 
   // Something to make this layer push properties, but no other layer.
   void MakePushProperties();
 
   size_t push_properties_count() const { return push_properties_count_; }
   void reset_push_properties_count() { push_properties_count_ = 0; }
 
   void set_persist_needs_push_properties(bool persist) {
     persist_needs_push_properties_ = persist;
   }
 
  private:
   PushPropertiesCountingLayer();
   ~PushPropertiesCountingLayer() override;
 
   void AddPushPropertiesCount();
 
   size_t push_properties_count_;
   bool persist_needs_push_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(PushPropertiesCountingLayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_PUSH_PROPERTIES_COUNTING_LAYER_H_