Index: third_party/WebKit/Source/core/page/FrameTree.h |
diff --git a/third_party/WebKit/Source/core/page/FrameTree.h b/third_party/WebKit/Source/core/page/FrameTree.h |
index 9e8854c796ae9479b39f2ec8e3433ef6e998e33c..07ab2368de008f8a4cea3db17180b4ca730c4ecd 100644 |
--- a/third_party/WebKit/Source/core/page/FrameTree.h |
+++ b/third_party/WebKit/Source/core/page/FrameTree.h |
@@ -43,7 +43,7 @@ class CORE_EXPORT FrameTree final { |
void ExperimentalSetNulledName(); |
Frame* Parent() const; |
- Frame* Top() const; |
+ Frame& Top() const; |
Frame* NextSibling() const; |
Frame* FirstChild() const; |