| Index: third_party/WebKit/Source/core/editing/markers/GenericDocumentMarkerListImpl.cpp | 
| diff --git a/third_party/WebKit/Source/core/editing/markers/GenericDocumentMarkerListImpl.cpp b/third_party/WebKit/Source/core/editing/markers/GenericDocumentMarkerListImpl.cpp | 
| index 3c4ceb3289296a65bf76646083c1da8976def1b4..cbe0675c29da1af6c99e9fd3bfc533ab2d6327d4 100644 | 
| --- a/third_party/WebKit/Source/core/editing/markers/GenericDocumentMarkerListImpl.cpp | 
| +++ b/third_party/WebKit/Source/core/editing/markers/GenericDocumentMarkerListImpl.cpp | 
| @@ -20,10 +20,11 @@ void GenericDocumentMarkerListImpl::Add(DocumentMarker* marker) { | 
| DocumentMarkerListEditor::AddMarkerAndMergeOverlapping(&markers_, marker); | 
| return; | 
| case DocumentMarker::kTextMatch: | 
| -    case DocumentMarker::kComposition: | 
| DocumentMarkerListEditor::AddMarkerWithoutMergingOverlapping(&markers_, | 
| marker); | 
| return; | 
| +    case DocumentMarker::kComposition: | 
| +      NOTREACHED(); | 
| } | 
|  | 
| NOTREACHED(); | 
|  |