[DevTools] Add offset and scale to WebDeviceEmulationParams.

[DevTools] Add offset and scale to WebDeviceEmulationParams.

This will be used to set offset/scale from DevTools protocol
instead of caluculating them in embedder.

NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=176509

[dgozman, 2014-06-19 12:05:21]

Take a look please.

[pfeldman, 2014-06-19 12:08:44]

lgtm

[dgozman, 2014-06-19 12:17:41]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2014-06-19 12:18:15]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dgozman@chromium.org/342953003/1

[commit-bot: I haz the power, 2014-06-19 12:19:12]

Change committed as 176506

[dgozman, 2014-06-19 12:32:25]

A revert of this CL has been created in
https://codereview.chromium.org/342963002/ by dgozman@chromium.org.

The reason for reverting is: Broke compile..

[dgozman, 2014-06-19 12:39:40]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2014-06-19 12:40:22]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dgozman@chromium.org/342953003/20001

[commit-bot: I haz the power, 2014-06-19 12:57:12]

Change committed as 176509