Merge changes from 39.0.2171.71.

* Changes:
  Publish DEPS for Chromium 39.0.2171.71
  Incrementing VERSION to 39.0.2171.71
  Incrementing VERSION to 39.0.2171.70
  Incrementing VERSION to 39.0.2171.69
  disable link disambiguation by default
  Incrementing VERSION to 39.0.2171.68
  We previously had a setting in chrome defaults but this deprecates that for a command line flag and utility function that always defers to the flag but otherwise returns a default based on operating system. The CL then removes some of the code that depended on the default for a more robust direct check by the render_view_impl. This should also help with some of the CrOS UI bugs that link disambiguation created with views that didn't necessarily initialize their RendererPreferences.
  Incrementing VERSION to 39.0.2171.67
  Incrementing VERSION to 39.0.2171.66
  Incrementing VERSION to 39.0.2171.65
  [Sync] Device info should be enabled by default
  Revert "Merge 663413002 to M39:"
  Setting version to 39.0.2171.64