Use PositionMoveType::GraphemeBoundary

third_party/WebKit/Source/core/editing/EditingUtilities.h

Index: third_party/WebKit/Source/core/editing/EditingUtilities.h
diff --git a/third_party/WebKit/Source/core/editing/EditingUtilities.h b/third_party/WebKit/Source/core/editing/EditingUtilities.h
index fd7071badd8173c7d5c48e1a5887c93d08a41bc1..71ddcc4574edfbee174956d07b3f701ac20a6f52 100644
--- a/third_party/WebKit/Source/core/editing/EditingUtilities.h
+++ b/third_party/WebKit/Source/core/editing/EditingUtilities.h
@@ -45,16 +45,11 @@ enum class PositionMoveType {
     CodeUnit,
     // Move to the next Unicode code point. At most two code unit when we are
     // at surrogate pair. Please consider using |GraphemeCluster|.
-    CodePoint,
-    // Used with |previousPositionOf()| to compute number of code units as
-    // backward deletion, e.g Backspace key. This is similar to
-    // |GraphemeCluster| but some tailoring with platform dependent behavior.
     BackwardDeletion,
-    // TODO(yosin): We'll have |GraphemeCluster| move type.
     // Move by a grapheme cluster for user-perceived character in Unicode
     // Standard Annex #29, Unicode text segmentation[1].
     // [1] http://www.unicode.org/reports/tr29/
-    // GraphemeCluster,
+    GraphemeCluster,
 };
 
 class Document;