Previously, the handler for the Shift+R shortcut would refresh the
change view data manually and move the patch range. This resulted in
some flickering and would differ from the behavior of the GWT UI which
would instead navigate to the same change with the patch range
parameters omitted from the URL. With this change, Shift+R matches the
GWT UI's behavior, and an entry is added to the change view shortcut
modal.
Bug: Issue 5363
Change-Id: I8e4eeb893a900c2e09c5cfae3373599727cafa20
c1d4e2a376