
Previously in Polygerrit, comments were always expanded. You could always see the full comment (if multiline) and any applicable actions. This change creates a collapsed comment view. It adds a preview of the text to the header row when collapsed, and can be toggled open when any part of the header is clicked. Bug: Issue 4698 Change-Id: Idca5caf92eb32518b6737dbb5a3380d227513996