Replace DOMWindow with iframe attrs: src, id, name

third_party/WebKit/Source/core/timing/Performance.h

Index: third_party/WebKit/Source/core/timing/Performance.h
diff --git a/third_party/WebKit/Source/core/timing/Performance.h b/third_party/WebKit/Source/core/timing/Performance.h
index 95bc1fb07652a56e43d13072d7bad3f19417b55d..5c869292cd56368b0e48d04c5e92b142aad70265 100644
--- a/third_party/WebKit/Source/core/timing/Performance.h
+++ b/third_party/WebKit/Source/core/timing/Performance.h
@@ -42,6 +42,7 @@
 
 namespace blink {
 
+class HTMLFrameOwnerElement;
 class ScriptState;
 class ScriptValue;
 
@@ -80,6 +81,9 @@ class CORE_EXPORT Performance final : public PerformanceBase,
       const HeapHashSet<Member<Frame>>& frames,
       Frame* observerFrame);
 
+  std::tuple<String, String, String> culpritFrameAttributes(
+      HTMLFrameOwnerElement*);
+
   // PerformanceMonitor::Client implementation.
   void reportLongTask(double startTime,
                       double endTime,