Store recording invalidations in DisplayListRecordingSource, save them via Update.

cc/layers/picture_layer.h

Index: cc/layers/picture_layer.h
diff --git a/cc/layers/picture_layer.h b/cc/layers/picture_layer.h
index 248eee8db920f2d8e0f74da38a522b726402b9ae..2d2a03b2456cf67c3c2410347b5145ec3d5289c1 100644
--- a/cc/layers/picture_layer.h
+++ b/cc/layers/picture_layer.h
@@ -68,10 +68,10 @@ class CC_EXPORT PictureLayer : public Layer {
   devtools_instrumentation::
       ScopedLayerObjectTracker instrumentation_object_tracker_;
 
-  // Invalidation to use the next time update is called.
-  InvalidationRegion invalidation_;
-
+  // These store the last visible layer and invalidation computed via a call
+  // to Update().
   gfx::Rect last_updated_visible_layer_rect_;
+  Region last_updated_invalidation_;
 
   int update_source_frame_number_;
   bool is_mask_;