GitLab

Instead of forward declaring ChromeBrowserState in the ios
namespace, use a header. This will allow moving the class
to the global namespace without having to change all the
forward declaration at the same time.

This CL was uploaded by git cl split.

R=mathp@chromium.org

Bug: 1042208
Change-Id: I572b636065ae19af26ff57ec90a98a002a5eb381
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2010767Reviewed-by: Mathieu Perreault <mathp@chromium.org>
Commit-Queue: Mathieu Perreault <mathp@chromium.org>
Auto-Submit: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734024}