switch to new ImageGenerator API

cc/tiles/tile_manager_unittest.cc

 // Copyright 2013 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 <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
@@ skipping 2334 matching lines @@
 TEST_F(CheckerImagingTileManagerTest,
        NoImageDecodeDependencyForCheckeredTiles) {
   const gfx::Size layer_bounds(512, 512);
   SetupDefaultTrees(layer_bounds);
 
   std::unique_ptr<FakeRecordingSource> recording_source =
       FakeRecordingSource::CreateFilledRecordingSource(layer_bounds);
   recording_source->SetGenerateDiscardableImagesMetadata(true);
 
   sk_sp<SkImage> image = SkImage::MakeFromGenerator(
-      new testing::StrictMock<MockImageGenerator>(gfx::Size(512, 512)));
+      base::MakeUnique<testing::StrictMock<MockImageGenerator>>(
+          gfx::Size(512, 512)));
   recording_source->add_draw_image(image, gfx::Point(0, 0));
 
   recording_source->Rerecord();
   scoped_refptr<RasterSource> raster_source =
       RasterSource::CreateFromRecordingSource(recording_source.get(), false);
 
   std::unique_ptr<PictureLayerImpl> layer_impl = PictureLayerImpl::Create(
       host_impl()->active_tree(), 1, Layer::LayerMaskType::NOT_MASK);
   layer_impl->set_is_drawn_render_surface_layer_list_member(true);
   PictureLayerTilingSet* tiling_set = layer_impl->picture_layer_tiling_set();
@@ skipping 12 matching lines @@
   // a part of raster tasks, the test should fail.
   host_impl()->tile_manager()->PrepareTiles(host_impl()->global_tile_state());
   EXPECT_TRUE(host_impl()->tile_manager()->HasScheduledTileTasksForTesting());
   static_cast<SynchronousTaskGraphRunner*>(task_graph_runner())->RunUntilIdle();
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(host_impl()->tile_manager()->HasScheduledTileTasksForTesting());
 }
 
 }  // namespace
 }  // namespace cc