Move //device/sensor impl to be part of the internal implemenation of the Device Service.

Move //device/sensor impl to be part of the internal implemenation of the Device Service.

This is the last step of Servicification of Device Sensor. In this patch:
1) Move the DeviceSensorJni registry from //content into //services.
2) Move all the //device/sensor impl into //services/device.

BUG=686707

[ke.he, 2017-04-19 09:34:52]

The CQ bit was checked by ke.he@intel.com to run a CQ dry run

[commit-bot: I haz the power, 2017-04-19 09:35:30]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[ke.he, 2017-04-19 09:45:01]

Description was changed from

==========
Move //device/sensor impl to be part of the internal implemenation of the Device
Service.

BUG=686707
==========

to

==========
Move //device/sensor impl to be part of the internal implemenation of the Device
Service.

This is the last step of Servicification of Device Sensor. In this patch:
1) Move the DeviceSensorJni registry from //content into //services.
2) Move all the //device/sensor impl into //services/device.

BUG=686707
==========

[commit-bot: I haz the power, 2017-04-19 09:46:00]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-19 09:46:01]

Dry run: Try jobs failed on following builders:
  mac_chromium_compile_dbg_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[ke.he, 2017-04-19 09:50:17]

The CQ bit was checked by ke.he@intel.com to run a CQ dry run

[commit-bot: I haz the power, 2017-04-19 09:50:46]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-19 10:01:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-19 10:01:40]

Dry run: Try jobs failed on following builders:
  cast_shell_android on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/cast_shell_a...)