Re-land "Issue 191223007: Move touch CTM from X into Chrome"

Re-land "Move touch CTM from X into Chrome"

Currently we compute the touch CTM in OutputConfigurator
and push that into X. This CL makes computing the touch CTM
in DisplayController, and pushing it
into WindowTreeHostX11. This moves the functionality of
touch CTM from X into Chrome.

Basically, when there is output configuration change, we
compute the TouchCTM for each touch device, and push the
TouchCTM into the WindowTreeHostX11 that is associated
with the touchscreen. Then when X events reaching root
window, we use the CTM to map the events coordinate in
framebuffer space into the root window's coordinate space.


BUG=351019, chrome-os-partner:25788
TEST=tested on Pixel/Clapper with external touch/non-touch displays
on both extended/mirror mode. Touch events are correctly mapped to
chrome window or discarded if it is from blank region from letterboxing/pillarboxing mirror mode.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=269371

TBR=sadrul@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=270252

[Yufeng Shen (Slow to review), 2014-05-13 17:01:28]

The CQ bit was checked by miletus@chromium.org

[commit-bot: I haz the power, 2014-05-13 17:01:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miletus@chromium.org/280833002/1

[Yufeng Shen (Slow to review), 2014-05-13 17:05:39]

sadrul: I am re-landing this now. 

I moved the TouchCalibrate back to WindowTreeHostX11 for now
and added a TODO to move it to DeviceDataManager. Once you 
finish separating the platform/* into a new target I will follow up on that.

Sorry for this. But I want this hits canary quickly so as to 
merge it back to M36. Waiting too long make it harder to merge.

[Yufeng Shen (Slow to review), 2014-05-13 18:23:15]

The CQ bit was checked by miletus@chromium.org

[commit-bot: I haz the power, 2014-05-13 18:23:30]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miletus@chromium.org/280833002/20001

[Yufeng Shen (Slow to review), 2014-05-13 18:46:36]

The CQ bit was checked by miletus@chromium.org

[commit-bot: I haz the power, 2014-05-13 18:47:35]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miletus@chromium.org/280833002/30001

[commit-bot: I haz the power, 2014-05-13 23:56:51]

Change committed as 270252