Revert "Files SWA: Moving to a new directory."

This reverts commit 4ccb6508.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 805598 as the
culprit for failures in the build cycles as shown on:
https://analysis.chromium.org/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzRjY2I2NTA4MDBjZDdkZTgzYWUzY2RiNzFkMzNiZmQ5N2NmZTBkOWYM

Sample Failed Build: https://ci.chromium.org/b/8869579849484323600

Sample Failed Step: compile

Original change's description:
> Files SWA: Moving to a new directory.
> 
> Bug: 1111229
> Change-Id: Id0509caf9d1d9de8efa293344e682610cf1a8699
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2381330


> Reviewed-by: Dominick Ng <dominickn@chromium.org>
> Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
> Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
> Reviewed-by: Jiewei Qian <qjw@chromium.org>
> Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
> Commit-Queue: Bo Majewski <majewski@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#805598}


Change-Id: Iaced93329ca1f5e37d6cec4f9e3fdf6b5ae8664f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1111229
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401927
Cr-Commit-Position: refs/heads/master@{#805604}