Decouple l10n_util from InputMethodUtil.

Decouple l10n_util from InputMethodUtil.

This CL changes:
 - Moving localization related function into delegate class.
 - Removing GetLanguageDisplayNameFromCode and GetLanguageNativeDisplayNameFromCode from InputMethodUtil because they are just thin wrapper function of l10n_util and only used from CrosLanguageOptionHandler.

This CL does not change any test expectations except TestGetLanguageNativeDisplayNameFromCode for checking regressions.
And I'm going to refactor strings related stuff to more appropriate location.
So let me keep tests as is.

BUG=164375
TEST=ran unit_tests and also checked there is no regression with this CL on actual devices.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=194927

[Seigo Nonaka, 2013-04-17 13:43:03]

Hi Satoru,

could you take a look?
This is a part of refactoring that moving c/b/chromeos/input_method to
chromeos/ime.

Thank you.

[satorux1, 2013-04-18 06:09:26]

LGTM with nits

https://codereview.chromium.org/14200032/diff/5001/chromeos/ime/mock_input_me...
File chromeos/ime/mock_input_method_delegate.h (right):

https://codereview.chromium.org/14200032/diff/5001/chromeos/ime/mock_input_me...
chromeos/ime/mock_input_method_delegate.h:17: class CHROMEOS_EXPORT
MockInputMethodDelegate : public InputMethodDelegate {
Rename this to FakeInputMethodDelegate? This class doesn't seem to be used for
interaction-based (expectation-based) tests.

[Seigo Nonaka, 2013-04-18 11:50:59]

Satoru, thank you for your review!

Adding Nikita as the owner of chrome/browser/ui/webui/options/chromeos/.

Hi Nikita, could you take an owner review?

Thank you.

https://codereview.chromium.org/14200032/diff/5001/chromeos/ime/mock_input_me...
File chromeos/ime/mock_input_method_delegate.h (right):

https://codereview.chromium.org/14200032/diff/5001/chromeos/ime/mock_input_me...
chromeos/ime/mock_input_method_delegate.h:17: class CHROMEOS_EXPORT
MockInputMethodDelegate : public InputMethodDelegate {
Sure, Done.
On 2013/04/18 06:09:26, satorux1 wrote:
> Rename this to FakeInputMethodDelegate? This class doesn't seem to be used for
> interaction-based (expectation-based) tests.

[Nikita (slow), 2013-04-18 12:10:57]

lgtm

[commit-bot: I haz the power, 2013-04-18 12:35:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nona@chromium.org/14200032/9001

[commit-bot: I haz the power, 2013-04-18 15:20:18]

Change committed as 194927