| Index: third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h | 
| diff --git a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h | 
| index b5890004ec5fcf3f2ba745189e4b9f942bd179fc..2bbe3fbec256b90440b38192f8b872cde30aac21 100644 | 
| --- a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h | 
| +++ b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h | 
| @@ -33,6 +33,11 @@ class CORE_EXPORT DocumentMarkerList | 
|  | 
| // Returns all markers | 
| virtual const HeapVector<Member<DocumentMarker>>& GetMarkers() const = 0; | 
| +  // Returns the first marker whose interior overlaps with the range | 
| +  // [start_offset, end_offset], or null if there is no such marker. | 
| +  virtual DocumentMarker* FirstMarkerIntersectingRange( | 
| +      unsigned start_offset, | 
| +      unsigned end_offset) const = 0; | 
| // Returns markers that have non-empty overlap with the range | 
| // [start_offset, end_offset] | 
| virtual HeapVector<Member<DocumentMarker>> MarkersIntersectingRange( | 
|  |