Adding a word to dictionary should remove spelling markers

Source/core/dom/DocumentMarkerController.h

Index: Source/core/dom/DocumentMarkerController.h
diff --git a/Source/core/dom/DocumentMarkerController.h b/Source/core/dom/DocumentMarkerController.h
index c7f0e456b21235def99ddf076e5002f96baea5f6..d8e358541a046e92be1f01f3e29313203a16ebfa 100644
--- a/Source/core/dom/DocumentMarkerController.h
+++ b/Source/core/dom/DocumentMarkerController.h
@@ -40,6 +40,16 @@ class LayoutRect;
 class Node;
 class Range;
 class RenderedDocumentMarker;
+class Text;
+
+class MarkerRemoverPredicate {
+public:
+    MarkerRemoverPredicate(const Vector<String>& words);
+    bool operator()(const DocumentMarker& documentMarker,
+        const Text* textNode) const;
+private:
+    Vector<String> m_words;

[yosin_UTC9, 2014/08/13 01:29:52]

My reasoning was |MarkRemovePredicate| is general term and when we use this for
using other purpose other than custom dictionary update.
However, it is too nervous. When we'll use |MarkerRemoverPredicate| with
thousands of words, we'll change it to |HashSet| or another for efficient look
up data structure.

+};
 
 class DocumentMarkerController FINAL : public NoBaseWillBeGarbageCollected<DocumentMarkerController> {
     WTF_MAKE_NONCOPYABLE(DocumentMarkerController); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
@@ -67,6 +77,7 @@ public:
 
     void removeMarkers(DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     void removeMarkers(Node*, DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
+    void removeMarkers(const MarkerRemoverPredicate& shouldRemoveMarker);
     void repaintMarkers(DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     void invalidateRenderedRectsForMarkersInRect(const LayoutRect&);
     void shiftMarkers(Node*, unsigned startOffset, int delta);