Add externs for file_manager.

Add externs for file_manager.

Type annotations for private APIs used in file_manager/* are generated using http://crrev.com/511943003.
Enum types in idl files are annotated as strings.

BUG=406995
TEST=build/gyp_chromium --depth . `find ui/file_manager -name compiled_resources.gyp` && ninja -C out/Debug

Committed: https://crrev.com/899fc2d96d02358d1bb4c6ca769fe2735bdbbb52
Cr-Commit-Position: refs/heads/master@{#298219}

[fukino, 2014-10-03 09:47:59]

fukino@chromium.org changed reviewers:
+ dbeam@chromium.org, hirono@chromium.org

[fukino, 2014-10-03 09:48:00]

dbeam@: PTAL at third_party/closure_compiler
hirono@: PTAL at ui/file_manager

[Dan Beam, 2014-10-03 18:26:25]

lgtm

I think your TEST= line (if you want to stick to bash commands) could be
simplified to:

  $ build/gyp_chromium --depth . `find ui/file_manager -name
compiled_resources.gyp` && ninja -C out/Default

[fukino, 2014-10-06 06:19:53]

On 2014/10/03 18:26:25, Dan Beam wrote:
> lgtm
> 
> I think your TEST= line (if you want to stick to bash commands) could be
> simplified to:
> 
>   $ build/gyp_chromium --depth . `find ui/file_manager -name
> compiled_resources.gyp` && ninja -C out/Default

Thanks!
With gyp_chromium, out/Release or out/Debug seems to work, so I rewrite the
'TEST=' with out/Debug.

[fukino, 2014-10-06 06:57:31]

ping? > @hirono

[hirono, 2014-10-06 10:38:42]

Sorry for late. lgtm!

[fukino, 2014-10-06 10:39:07]

On 2014/10/06 10:38:42, hirono wrote:
> Sorry for late. lgtm!

Thanks!

[fukino, 2014-10-06 10:39:12]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2014-10-06 10:39:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/625813003/1

[commit-bot: I haz the power, 2014-10-06 11:16:48]

Committed patchset #1 (id:1) as 4e3cafe318491edca7c203a725074be3b1b71684

[commit-bot: I haz the power, 2014-10-06 11:17:38]

Patchset 1 (id:??) landed as
https://crrev.com/899fc2d96d02358d1bb4c6ca769fe2735bdbbb52
Cr-Commit-Position: refs/heads/master@{#298219}