Emit object replacement char to IME

Source/core/editing/TextIterator.h

Index: Source/core/editing/TextIterator.h
diff --git a/Source/core/editing/TextIterator.h b/Source/core/editing/TextIterator.h
index b6be1fa052cc0aebaef12b39dd84f93b75b12e9d..b1ad179c9972a75ac689e6d018b03b5dede299ac 100644
--- a/Source/core/editing/TextIterator.h
+++ b/Source/core/editing/TextIterator.h
@@ -45,7 +45,8 @@ enum TextIteratorBehavior {
     TextIteratorEmitsOriginalText = 1 << 3,
     TextIteratorStopsOnFormControls = 1 << 4,
     TextIteratorEmitsImageAltText = 1 << 5,
-    TextIteratorEntersAuthorShadowRoots = 1 << 6
+    TextIteratorEntersAuthorShadowRoots = 1 << 6,
+    TextIteratorEmitsReplacementChar = 1 << 7,
 };
 typedef unsigned TextIteratorBehaviorFlags;
 
@@ -207,6 +208,8 @@ private:
     bool m_emitsImageAltText;
 
     bool m_entersAuthorShadowRoots;
+
+    bool m_emitsReplacementChar;
 };
 
 // Iterates through the DOM range, returning all the text, and 0-length boundaries