cc: Remove GetRasterSource from PictureLayerTilingClient.

cc/debug/rasterize_and_record_benchmark_impl.cc

Index: cc/debug/rasterize_and_record_benchmark_impl.cc
diff --git a/cc/debug/rasterize_and_record_benchmark_impl.cc b/cc/debug/rasterize_and_record_benchmark_impl.cc
index 07058d0871fae4b0a443a64d82d06d5023547ea8..394a74e9ffa2210e66e30844d2b738192797b521 100644
--- a/cc/debug/rasterize_and_record_benchmark_impl.cc
+++ b/cc/debug/rasterize_and_record_benchmark_impl.cc
@@ -99,10 +99,6 @@ class FixedInvalidationPictureLayerTilingClient
     return base_client_->CreateTile(tiling, content_rect);
   }
 
-  RasterSource* GetRasterSource() override {
-    return base_client_->GetRasterSource();
-  }
-
   gfx::Size CalculateTileSize(const gfx::Size& content_bounds) const override {
     return base_client_->CalculateTileSize(content_bounds);
   }
@@ -217,10 +213,11 @@ void RasterizeAndRecordBenchmarkImpl::RunOnLayer(PictureLayerImpl* layer) {
 
   FixedInvalidationPictureLayerTilingClient client(
       layer, gfx::Rect(layer->content_bounds()));
-  PictureLayerTilingSet tiling_set(&client);
+  auto tiling_set =
+      PictureLayerTilingSet::Create(&client, layer->GetRasterSource());
 
   PictureLayerTiling* tiling =
-      tiling_set.AddTiling(layer->contents_scale_x(), layer->bounds());
+      tiling_set->AddTiling(layer->contents_scale_x(), layer->bounds());
   tiling->CreateAllTilesForTesting();
   for (PictureLayerTiling::CoverageIterator it(
            tiling, layer->contents_scale_x(), layer->visible_content_rect());