Update from https://crrev.com/308331

cc/test/layer_tree_pixel_resource_test.cc

 // Copyright 2014 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/layer_tree_pixel_resource_test.h"
 
 #include "cc/layers/layer.h"
 #include "cc/resources/bitmap_tile_task_worker_pool.h"
 #include "cc/resources/gpu_tile_task_worker_pool.h"
 #include "cc/resources/one_copy_tile_task_worker_pool.h"
@@ skipping 199 matching lines @@
       break;
   }
 }
 
 void LayerTreeHostPixelResourceTest::RunPixelResourceTest(
     scoped_refptr<Layer> content_root,
     base::FilePath file_name) {
   if (!IsTestCaseSupported(test_case_))
     return;
   RunPixelTest(test_type_, content_root, file_name);
+
+  if (layer_tree_host())
+    EXPECT_TRUE(layer_tree_host()->settings().impl_side_painting);
 }
 
 ParameterizedPixelResourceTest::ParameterizedPixelResourceTest()
     : LayerTreeHostPixelResourceTest(GetParam()) {
 }
 
 }  // namespace cc