Do not rewrite AltGr Key as Alt+Ctrl

Do not rewrite AltGr Key as Alt+Ctrl

This is partial revert of http://crrev.com/215376
It turned out that this breaks browser accelerator triggered with Ctrl+Alt like spoken feedback or opening secure shell.

And also that CL changes AltGr behavior to meet as Windows but some we application already works on current behaviors. As the result some application including Google Docs or Secure Shell breaks.

So rewriting to Alt+Ctrl is no longer feasible conversion.

BUG=253365, 288573, 287338
TEST=None

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=224232

[Seigo Nonaka, 2013-09-18 18:30:22]

Hi Jochen,

This is partial revert of http://crrev.com/215376 to fix AltGr regressions on
Chrome OS.
The reason why I can't full-revert is that some constants introduced in above CL
is already used for other purpose.
So please let me revert part of that CL.

This CL does no affect for Windows Aura.

Could you take an owner's look?

Thank you.

[jochen (gone - plz use gerrit), 2013-09-19 12:34:31]

lgtm with nit

https://codereview.chromium.org/23890039/diff/1/chrome/browser/chromeos/input...
File chrome/browser/chromeos/input_method/keyboard_browsertest.cc (left):

https://codereview.chromium.org/23890039/diff/1/chrome/browser/chromeos/input...
chrome/browser/chromeos/input_method/keyboard_browsertest.cc:23:
base::FilePath(FILE_PATH_LITERAL("keyevent_logging.html")));
please also delete the html file

[Seigo Nonaka, 2013-09-19 19:03:56]

Thank you. Submitting...

https://codereview.chromium.org/23890039/diff/1/chrome/browser/chromeos/input...
File chrome/browser/chromeos/input_method/keyboard_browsertest.cc (left):

https://codereview.chromium.org/23890039/diff/1/chrome/browser/chromeos/input...
chrome/browser/chromeos/input_method/keyboard_browsertest.cc:23:
base::FilePath(FILE_PATH_LITERAL("keyevent_logging.html")));
On 2013/09/19 12:34:32, jochen wrote:
> please also delete the html file

Done.

[commit-bot: I haz the power, 2013-09-19 19:07:02]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nona@chromium.org/23890039/6001

[commit-bot: I haz the power, 2013-09-19 23:34:32]

Change committed as 224232