[webkit-reviews] review requested: [Bug 68939] Simplify ReplaceSelectionCommand::positionAtStartOfInsertedContent : [Attachment 108916] Simplified the function with additional fixes and refactoring

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 68939: Simplify ReplaceSelectionCommand::positionAtStartOfInsertedContent
https://bugs.webkit.org/show_bug.cgi?id=68939

Attachment 108916: Simplified the function with additional fixes and
refactoring
https://bugs.webkit.org/attachment.cgi?id=108916&action=review