GitLab

This CL splits class ChildProcessCreationParams into interface
definition and implementation details, and moves the definition
to content_public. Sldo removes the DEPS exception rules.

Bug: 617324
Change-Id: I27d87fbb0258a208aafa6a932e35b21846b73261
Reviewed-on: https://chromium-review.googlesource.com/1077711Reviewed-by: Maria Khomenko <mariakhomenko@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#563107}