Support for mousecontrol script

Support for mousecontrol script

Create a common pointer_settings::SetSensitivity call applicable to all input pointer devices.
Pull common code for mouse and touchpad into common functions.
Add calls for mouse status, swap left-right and sensitivity.

BUG=chromium-os:22305
TEST=plug in a mouse on a chromeos device. Mouse settings should appear in chrome://settings/system. Swap and pointer speed should work as expected.
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=118409

[achuithb, 2012-01-19 19:28:16]

Xiyuan - adlr's mousecontrol script has landed. It supports commands 'status',
'sensitivity' and 'swap_left_right'. This CL integrates it into chromeos UI.

[xiyuan, 2012-01-19 20:49:40]

LGTM

http://codereview.chromium.org/9250023/diff/6003/chrome/browser/chromeos/syst...
File chrome/browser/chromeos/system/input_device_settings.cc (right):

http://codereview.chromium.org/9250023/diff/6003/chrome/browser/chromeos/syst...
chrome/browser/chromeos/system/input_device_settings.cc:28: const char*
kMouseControl = "/opt/google/mouse/mousecontrol";
nit: think the preferred way to define string constant is
const char kMouseControl[] and update the one above as well.

[achuithb, 2012-01-19 22:19:04]

Thanks for the review, Xiyuan!

http://codereview.chromium.org/9250023/diff/6003/chrome/browser/chromeos/syst...
File chrome/browser/chromeos/system/input_device_settings.cc (right):

http://codereview.chromium.org/9250023/diff/6003/chrome/browser/chromeos/syst...
chrome/browser/chromeos/system/input_device_settings.cc:28: const char*
kMouseControl = "/opt/google/mouse/mousecontrol";
On 2012/01/19 20:49:40, xiyuan wrote:
> nit: think the preferred way to define string constant is
> const char kMouseControl[] and update the one above as well.

Done.

[commit-bot: I haz the power, 2012-01-19 22:19:21]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/achuith@chromium.org/9250023/4006

[commit-bot: I haz the power, 2012-01-19 23:36:51]

Try job failure for 9250023-4006 (retry) on linux_rel for step "ui_tests".
It's a second try, previously, step "ui_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2012-01-20 00:19:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/achuith@chromium.org/9250023/4006

[commit-bot: I haz the power, 2012-01-20 03:54:47]

Try job failure for 9250023-4006 (retry) (retry) (retry) on mac_rel for step
"browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...