Add a flag to disable partial raster in renderer

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 d798dc6705ecd1c19217d06483839419628adb45..ae47cbf389da026228a129f5dd90a7e4a928ba3f 100644
--- a/cc/debug/rasterize_and_record_benchmark_impl.cc
+++ b/cc/debug/rasterize_and_record_benchmark_impl.cc
@@ -98,6 +98,10 @@ class FixedInvalidationPictureLayerTilingClient
     return base_client_->RequiresHighResToDraw();
   }
 
+  bool IsPartialRasterEnabled() const override {
+    return base_client_->IsPartialRasterEnabled();
+  }
+
  private:
   PictureLayerTilingClient* base_client_;
   Region invalidation_;