Add serialization/deserialization for FakePictureLayer for testing.

cc/test/remote_client_layer_factory.cc

 // 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.
 
 #include "cc/test/remote_client_layer_factory.h"
 
 #include "cc/layers/layer.h"
 #include "cc/layers/picture_layer.h"
 #include "cc/layers/solid_color_scrollbar_layer.h"
+#include "cc/test/fake_picture_layer.h"
 
 namespace cc {
 
 RemoteClientLayerFactory::RemoteClientLayerFactory() = default;
 
 RemoteClientLayerFactory::~RemoteClientLayerFactory() = default;
 
 scoped_refptr<Layer> RemoteClientLayerFactory::CreateLayer(
     int engine_layer_id) {
   scoped_refptr<Layer> layer = Layer::Create();
   layer->SetLayerIdForTesting(engine_layer_id);
   return layer;
 }
 
 scoped_refptr<PictureLayer> RemoteClientLayerFactory::CreatePictureLayer(
     int engine_layer_id,
     ContentLayerClient* content_layer_client) {
   scoped_refptr<PictureLayer> layer =
       PictureLayer::Create(content_layer_client);
   layer->SetLayerIdForTesting(engine_layer_id);
   return layer;
 }
 
+scoped_refptr<PictureLayer> RemoteClientLayerFactory::CreateFakePictureLayer(
+    int engine_layer_id,
+    ContentLayerClient* content_layer_client) {
+  scoped_refptr<PictureLayer> layer =
+      FakePictureLayer::Create(content_layer_client);
+  layer->SetLayerIdForTesting(engine_layer_id);
+  return layer;
+}
+
 scoped_refptr<SolidColorScrollbarLayer>
 RemoteClientLayerFactory::CreateSolidColorScrollbarLayer(
     int engine_layer_id,
     ScrollbarOrientation orientation,
     int thumb_thickness,
     int track_start,
     bool is_left_side_vertical_scrollbar,
     int scroll_layer_id) {
   scoped_refptr<SolidColorScrollbarLayer> layer =
       SolidColorScrollbarLayer::Create(
           orientation, thumb_thickness, track_start,
           is_left_side_vertical_scrollbar, scroll_layer_id);
   layer->SetLayerIdForTesting(engine_layer_id);
   return layer;
 }
 
 }  // namespace cc