Move isRenderedCharacter() to EditorCommand.cpp from Position.cpp

Source/core/editing/commands/EditCommand.cpp

Index: Source/core/editing/commands/EditCommand.cpp
diff --git a/Source/core/editing/commands/EditCommand.cpp b/Source/core/editing/commands/EditCommand.cpp
index 8cae2268635d69aa1749599670fe86aea735c48b..937170a0547244163676f7add23aad53ef6ad805 100644
--- a/Source/core/editing/commands/EditCommand.cpp
+++ b/Source/core/editing/commands/EditCommand.cpp
@@ -31,6 +31,7 @@
 #include "core/editing/FrameSelection.h"
 #include "core/editing/commands/CompositeEditCommand.h"
 #include "core/frame/LocalFrame.h"
+#include "core/layout/LayoutText.h"
 
 namespace blink {
 
@@ -89,6 +90,21 @@ void EditCommand::setEndingSelection(const VisiblePosition& position)
     setEndingSelection(VisibleSelection(position));
 }
 
+bool EditCommand::isRenderedCharacter(const Position& position)
+{
+    if (position.isNull())
+        return false;
+    ASSERT(position.isOffsetInAnchor());
+    if (!position.anchorNode()->isTextNode())
+        return false;
+
+    LayoutObject* layoutObject = position.anchorNode()->layoutObject();
+    if (!layoutObject)
+        return false;
+
+    return toLayoutText(layoutObject)->isRenderedCharacter(position.offsetInContainerNode());
+}
+
 void EditCommand::setParent(CompositeEditCommand* parent)
 {
     ASSERT((parent && !m_parent) || (!parent && m_parent));