Revert of views/mus: Fix showing menu in chrome in mus. (patchset #2 id:20001 of https://codereview.chromium.org/1460003004/ )

Reason for revert:
Suspected in build failure. see crbug.com/560461

Original issue's description:
> views/mus: Fix showing menu in chrome in mus.
>
> For menus in chrome-in-mus, we attempt to create a Widget hosted in a native
> window. For desktop builds, this means we attempt to host in a HWND or an
> X11 window created by DesktopNativeWidgetAura. But for mus, we want to use
> NativeWidgetMus. To do this, use the native-widget factory first if it's
> available.
>
> BUG=none
>
> Committed: https://crrev.com/2914df72a605451828a05e108c35fe9a1d72c971
> Cr-Commit-Position: refs/heads/master@{#361151}

TBR=sky@chromium.org,jam@chromium.org,sadrul@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/1472873003

Cr-Commit-Position: refs/heads/master@{#361163}


CrOS-Libchrome-Original-Commit: 25c81fcd8c425e404fc2fe2bbc840c3971867c81
1 file changed
tree: 09f5fa9e16332d4559813438f3109e9fb01395d1
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/