Add DocumentMarker::createCompositionMarker()

third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp

Index: third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp
diff --git a/third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp b/third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp
index 15f816b39acf360f1af4e7e92c04efdd0a148e2f..8a97a5b59b3d50e37459b2fb96ca89e11794c577 100644
--- a/third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp
+++ b/third_party/WebKit/Source/core/editing/markers/DocumentMarker.cpp
@@ -148,17 +148,24 @@ DocumentMarker::DocumentMarker(unsigned startOffset,
       m_endOffset(endOffset),
       m_details(DocumentMarkerTextMatch::create(activeMatch)) {}
 
-DocumentMarker::DocumentMarker(unsigned startOffset,
+DocumentMarker::DocumentMarker(MarkerType type,
+                               unsigned startOffset,
                                unsigned endOffset,
-                               Color underlineColor,
-                               bool thick,
-                               Color backgroundColor)
-    : m_type(DocumentMarker::Composition),
+                               DocumentMarkerDetails* details)
+    : m_type(type),
       m_startOffset(startOffset),
       m_endOffset(endOffset),
-      m_details(TextCompositionMarkerDetails::create(underlineColor,
-                                                     thick,
-                                                     backgroundColor)) {}
+      m_details(details) {}
+
+DocumentMarker* DocumentMarker::createCompositionMarker(unsigned startOffset,
+                                                        unsigned endOffset,
+                                                        Color underlineColor,
+                                                        bool thick,
+                                                        Color backgroundColor) {
+  return new DocumentMarker(Composition, startOffset, endOffset,
+                            TextCompositionMarkerDetails::create(
+                                underlineColor, thick, backgroundColor));
+}
 
 DocumentMarker::DocumentMarker(const DocumentMarker& marker)
     : m_type(marker.type()),