Allow Caps Lock to be remapped [part 1 of 2]

Allow Caps Lock to be remapped [part 1 of 2].

* Add "settings.language.remap_caps_lock_key_to" user pref.
* Modify EventRewriter so it rewrites F16 and/or Mod3Mask following the new pref.
* Modify keyboard_overlay.html so it shows a drop-down menu for Caps Lock. This part is currently commented out.

This change depends on https://gerrit.chromium.org/gerrit/#/c/36885/.

BUG=146204
TEST=new tests added
TEST=manually confirmed that F15 still works as Control, Caps Lock works as Caps Lock.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=165191

[Yusuke Sato, 2012-10-30 18:01:02]

Please take a look.

[Daniel Erat, 2012-10-30 18:16:34]

lgtm

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/ash/even...
File chrome/browser/ui/ash/event_rewriter_unittest.cc (right):

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/ash/even...
chrome/browser/ui/ash/event_rewriter_unittest.cc:1487: // TODO(yusukes):
Reenable the test once build servers are upgraded.
nit: mind filing a bug to track this, if you haven't already?

[mazda, 2012-10-30 18:26:03]

drive-by comment

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/webui/ch...
File chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc (right):

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/webui/ch...
chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc:316: // TODO(mazda):
Support prefs::kLanguageRemapCapsLockKeyTo once Caps Lock is
Could you file a bug for this?

[Yusuke Sato, 2012-10-30 19:11:33]

Ben, could you do an owner review?

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/ash/even...
File chrome/browser/ui/ash/event_rewriter_unittest.cc (right):

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/ash/even...
chrome/browser/ui/ash/event_rewriter_unittest.cc:1487: // TODO(yusukes):
Reenable the test once build servers are upgraded.
On 2012/10/30 18:16:34, Daniel Erat wrote:
> nit: mind filing a bug to track this, if you haven't already?

Done: http://code.google.com/p/chromium/issues/detail?id=158585

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/webui/ch...
File chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc (right):

http://codereview.chromium.org/11314020/diff/14003/chrome/browser/ui/webui/ch...
chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc:316: // TODO(mazda):
Support prefs::kLanguageRemapCapsLockKeyTo once Caps Lock is
On 2012/10/30 18:26:03, mazda wrote:
> Could you file a bug for this?

Done: http://code.google.com/p/chromium/issues/detail?id=140051#c21

[Ben Goodger (Google), 2012-10-31 16:07:40]

lgtm

[commit-bot: I haz the power, 2012-10-31 16:21:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/yusukes@chromium.org/11314020/14003