Extract helper function.

third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h

Index: third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h
diff --git a/third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h b/third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h
index e67dbd717622298363b0074470ab439a4f834874..764a377929958d41c0b3c1a32335da01a5f09c0d 100644
--- a/third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h
+++ b/third_party/WebKit/Source/core/paint/InlineTextBoxPainter.h
@@ -43,18 +43,18 @@ class InlineTextBoxPainter {
                             DocumentMarkerPaintPhase);
   void paintDocumentMarker(GraphicsContext&,
                            const LayoutPoint& boxOrigin,
-                           DocumentMarker*,
+                           const DocumentMarker&,
                            const ComputedStyle&,
                            const Font&,
                            bool grammar);
   void paintTextMatchMarkerForeground(const PaintInfo&,
                                       const LayoutPoint& boxOrigin,
-                                      DocumentMarker*,
+                                      const DocumentMarker&,
                                       const ComputedStyle&,
                                       const Font&);
   void paintTextMatchMarkerBackground(const PaintInfo&,
                                       const LayoutPoint& boxOrigin,
-                                      DocumentMarker*,
+                                      const DocumentMarker&,
                                       const ComputedStyle&,
                                       const Font&);