Merge 138991

Source/WebCore/testing/Internals.cpp

Index: Source/WebCore/testing/Internals.cpp
===================================================================
--- Source/WebCore/testing/Internals.cpp	(revision 139630)
+++ Source/WebCore/testing/Internals.cpp	(working copy)
@@ -1514,6 +1514,20 @@
     return page->mainThreadScrollingReasonsAsText();
 }
 
+PassRefPtr<ClientRectList> Internals::nonFastScrollableRects(Document* document, ExceptionCode& ec) const
+{
+    if (!document || !document->frame()) {
+        ec = INVALID_ACCESS_ERR;
+        return 0;
+    }
+
+    Page* page = document->page();
+    if (!page)
+        return 0;
+
+    return page->nonFastScrollableRects(document->frame());
+}
+
 void Internals::garbageCollectDocumentResources(Document* document, ExceptionCode& ec) const
 {
     if (!document) {