Revert of Mandoline UI Process: Update namespaces and file names (patchset #9 id:150001 of https://codereview.chromium.org/1340983002/ )

Reason for revert:
Speculative, might've broken mojo_apptests on http://build.chromium.org/p/chromium.linux/builders/Linux%20GN/builds/32066

Original issue's description:
> Mandoline UI Process: Update namespaces and file names
>
> This CL updates namespaces in components/mus to mus from mojo, surfaces, gles2, and view_manager.
>
> BUG=531533
> TBR=jam@chromium.org for trivial pdf_viewer change.
>
> Committed: https://crrev.com/49b0d73f3ebb4801fc518751145504af3a2f70ed
> Cr-Commit-Position: refs/heads/master@{#349229}

TBR=sky@chromium.org,fsamuel@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=531533

Review URL: https://codereview.chromium.org/1351013002

Cr-Commit-Position: refs/heads/master@{#349332}


CrOS-Libchrome-Original-Commit: 35b19f7d5d7b7b68878d6c766e93e148f8b06998
4 files changed
tree: 600a5d9ea42c0e7b1606d3ec5cef40aae5b70ccf
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/