Move serial out of experimental.

Move serial out of experimental.

This CL is unremarkable except that I figured out that we're improperly
including some permissions for experimental APIs (which are already
covered by the blanket experimental permission). This made it tougher
because I used http://codereview.chromium.org/10440097/, which
benefited unwittingly from a pre-declared socket permission, as an
example. I then ran into missing namespace problems because I hadn't
done everything necessary (such as including serial in api_permission.cc).

I did my job as a good citizen and removed the superfluous USB permission.

Also ran build.py to update docs.

BUG=138370
TEST=no new ones; updated old ones to build.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=150186

[asargent_no_longer_on_chrome, 2012-08-03 23:41:07]

LGTM

https://chromiumcodereview.appspot.com/10852016/diff/2001/chrome/common/exten...
File chrome/common/extensions/api/_permission_features.json (right):

https://chromiumcodereview.appspot.com/10852016/diff/2001/chrome/common/exten...
chrome/common/extensions/api/_permission_features.json:286: "usb": {
should we remove this entry for usb?

https://chromiumcodereview.appspot.com/10852016/diff/2001/chrome/common/exten...
File chrome/common/extensions/permissions/api_permission.cc (right):

https://chromiumcodereview.appspot.com/10852016/diff/2001/chrome/common/exten...
chrome/common/extensions/permissions/api_permission.cc:156: // Packaged-app
permissions.
Related thought: we should embark on a bigger scope cleanup in the codebase to
switch away from using the "platform apps" term in favor of packaged apps, and
rename legacy packaged apps somehow since there are relevant differences between
the two.

[miket_OOO, 2012-08-03 23:50:36]

> chrome/common/extensions/api/_permission_features.json:286: "usb": {
> should we remove this entry for usb?

Yes, did it.

> Related thought: we should embark on a bigger scope cleanup in the codebase to
> switch away from using the "platform apps" term in favor of packaged apps, and
> rename legacy packaged apps somehow since there are relevant differences
between
> the two.

I switched it back. If we do embark on that project, it'll be less confusing to
have the outdated term for the new kind of app rather than to use a new label in
this one case that matches the old term. Or maybe we can just call it all "new
iPad."

[commit-bot: I haz the power, 2012-08-06 17:59:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/miket@chromium.org/10852016/1024

[commit-bot: I haz the power, 2012-08-06 18:16:57]

Try job failure for 10852016-1024 (retry) on win_rel for step "compile" (clobber
build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-08-06 18:26:58]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/miket@chromium.org/10852016/1024

[commit-bot: I haz the power, 2012-08-06 20:14:20]

Try job failure for 10852016-1024 (retry) (retry) on win_rel for step "compile"
(clobber build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-08-06 20:29:52]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/miket@chromium.org/10852016/1024

[commit-bot: I haz the power, 2012-08-06 21:58:53]

Try job failure for 10852016-1024 on win_rel for step "update".
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

Step "update" is always a major failure.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2012-08-06 22:21:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/miket@chromium.org/10852016/1024

[commit-bot: I haz the power, 2012-08-06 22:54:18]

Try job failure for 10852016-1024 (retry) on linux_chromeos for step "compile"
(clobber build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_chro...