[SPv2] Fix layout test crashes about raster invalidation

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index ae3818d3c8d36c02f6bc7066a16ebf685155cf5d..deb7bc4f3fcd47d2855635e8db9593088c2331f2 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -3744,10 +3744,12 @@ void FrameView::SetTracksPaintInvalidations(bool track_paint_invalidations) {
                               ? new Vector<ObjectPaintInvalidation>
                               : nullptr);
       if (RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
+        if (!paint_controller_)
+          paint_controller_ = PaintController::Create();
         paint_controller_->SetTracksRasterInvalidations(
             track_paint_invalidations);
-        paint_artifact_compositor_->SetTracksRasterInvalidations(
-            track_paint_invalidations);
+        if (paint_artifact_compositor_)
+          paint_artifact_compositor_->ResetTrackedRasterInvalidations();
       } else {
         layout_view.Compositor()->SetTracksRasterInvalidations(
             track_paint_invalidations);