Further plumb visual rect into cc:DisplayItemList.

ui/compositor/paint_cache.cc

Index: ui/compositor/paint_cache.cc
diff --git a/ui/compositor/paint_cache.cc b/ui/compositor/paint_cache.cc
index ca80aa3940c6b589c85f9236070fe97d334ab304..0b7f948b4590d45512cb0eaeff7e9f9242ba5e11 100644
--- a/ui/compositor/paint_cache.cc
+++ b/ui/compositor/paint_cache.cc
@@ -19,12 +19,15 @@ bool PaintCache::UseCache(const PaintContext& context) {
   if (!has_cache_)
     return false;
   DCHECK(context.list_);
-  auto* item = context.list_->CreateAndAppendItem<cc::DrawingDisplayItem>();
+  auto* item =
+      context.list_->CreateAndAppendItem<cc::DrawingDisplayItem>(layer_bounds_);
   display_item_.CloneTo(item);
   return true;
 }
 
-void PaintCache::SetCache(const cc::DrawingDisplayItem* item) {
+void PaintCache::SetCache(const gfx::Rect& layer_bounds,
+                          const cc::DrawingDisplayItem* item) {
+  layer_bounds_ = layer_bounds;
   item->CloneTo(&display_item_);
   has_cache_ = true;
 }