Enable more layer_tree_host_unittest for LayerTreeHostRemote.

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 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_