Comment 3 for bug 1571071

webkitgtk 2.4.10-1 has significant packaging changes:

  * Remove the libwebkitgtk-*common* and libwebkit-dev packages:
    + debian/control:
      - Remove package entries and add Breaks and Replaces fields to
        libwebkitgtk-{1,3}.0-0 and libwebkitgtk*-dev.
    + debian/libwebkitgtk-*common*.install:
      - Remove and move all files to libwebkitgtk-{1,3}.0-0.install and
        libwebkitgtk-3.0-dev.install.
    + debian/rules:
      - Remove dh_install rules from binary-indep.
  * Move documentation to a separate libwebkitgtk-doc package:
    + debian/libwebkitgtk-3.0-dev.{install,links},
      debian/libwebkitgtk-dev.{install,links},
      debian/libwebkitgtk-doc.{install,links}:
      debian/rules:
      - Don't install the documentation in the -dev packages and do it in
        libwebkitgtk-doc instead.
    + debian/libwebkitgtk-doc.doc-base:
      - Add doc-base control file.
    + debian/control:
      - Add package entry.

I'm not comfortable syncing this so late in the cycle, especially when it has so many reverse dependencies. And I don't see why you marked this as critical. It appears to just be some minor bug fixes.