Enable more layer_tree_host_unittest for LayerTreeHostRemote.

cc/test/remote_client_layer_factory.h

Index: cc/test/remote_client_layer_factory.h
diff --git a/cc/test/remote_client_layer_factory.h b/cc/test/remote_client_layer_factory.h
index a02d17ef72e83ccfdf0824c051d76a13b05a7a9c..22f1ebe588811ca2a93cce37d863209ab20a1ff7 100644
--- a/cc/test/remote_client_layer_factory.h
+++ b/cc/test/remote_client_layer_factory.h
@@ -23,9 +23,6 @@ class RemoteClientLayerFactory : public LayerFactory {
   scoped_refptr<PictureLayer> CreatePictureLayer(
       int engine_layer_id,
       ContentLayerClient* content_layer_client) override;
-  scoped_refptr<PictureLayer> CreateFakePictureLayer(
-      int engine_layer_id,
-      ContentLayerClient* content_layer_client) override;
   scoped_refptr<SolidColorScrollbarLayer> CreateSolidColorScrollbarLayer(
       int engine_layer_id,
       ScrollbarOrientation orientation,
@@ -33,6 +30,11 @@ class RemoteClientLayerFactory : public LayerFactory {
       int track_start,
       bool is_left_side_vertical_scrollbar,
       int scroll_layer_id) override;
+  scoped_refptr<PictureLayer> CreateFakePictureLayer(
+      int engine_layer_id,
+      ContentLayerClient* content_layer_client) override;
+  scoped_refptr<Layer> CreatePushPropertiesCountingLayer(
+      int engine_layer_id) override;
 };
 
 }  // namespace cc