[WIP] Refactor DocumentMarker

third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h

Index: third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h
diff --git a/third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h b/third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h
index 6165d8dfb4f7402b6b868ef3ae02b9bc7d6e76ed..2f22cc5b552d2e8e16532bc676591d508248f167 100644
--- a/third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h
+++ b/third_party/WebKit/Source/core/editing/markers/CompositionMarkerList.h
@@ -5,6 +5,7 @@
 #ifndef CompositionMarkerList_h
 #define CompositionMarkerList_h
 
+#include "core/editing/markers/CompositionMarker.h"
 #include "core/editing/markers/EditingMarkerList.h"
 
 namespace blink {
@@ -15,6 +16,8 @@ class CORE_EXPORT CompositionMarkerList final : public EditingMarkerList {
 
   DocumentMarker::MarkerType allowedMarkerType() const final;
 
+  CompositionMarker* at(size_t index) final;

[Xiaocheng, 2017/03/31 02:01:01]

virtual |at()| should be in some previous patch.

[rlanday, 2017/03/31 17:40:41]

I don't think this makes sense, there is no CompositionMarker class until this
patch, so this method would be exactly the same as its parent...

[Xiaocheng, 2017/03/31 19:59:18]

Yeah, you're right!

+
   DISALLOW_COPY_AND_ASSIGN(CompositionMarkerList);
 };