Don't access DisplayItemClient::VisualRect() for cached display items.

third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp

Index: third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp b/third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp
index 119f912fc2ea589732da496d6ce7430194103a33..9bbbb122376cc3426ed5e492e311ba99400c9e56 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.cpp
@@ -117,14 +117,12 @@ void PaintArtifact::Replay(const FloatRect& bounds,
 }
 
 DISABLE_CFI_PERF
-void PaintArtifact::AppendToWebDisplayItemList(WebDisplayItemList* list) const {
+void PaintArtifact::AppendToWebDisplayItemList(
+    const LayoutSize& visual_rect_offset,
+    WebDisplayItemList* list) const {
   TRACE_EVENT0("blink,benchmark", "PaintArtifact::appendToWebDisplayItemList");
-  size_t visual_rect_index = 0;
-  for (const DisplayItem& display_item : display_item_list_) {
-    display_item.AppendToWebDisplayItemList(
-        display_item_list_.VisualRect(visual_rect_index), list);
-    visual_rect_index++;
-  }
+  for (const DisplayItem& item : display_item_list_)
+    item.AppendToWebDisplayItemList(visual_rect_offset, list);
   list->SetIsSuitableForGpuRasterization(IsSuitableForGpuRasterization());
 }