I don't know if there's an appropriate Blink component for this, adding IO>DeviceOrientation.

+haraken since this might be a bindings issue - can you help triage here Kentaro?

The bindings support for this should be sufficient, it's just a matter of actually implementing the constructors. https://codereview.chromium.org/2347103003 is fairly similar case to show the amount of code involved.

@Tim - are you the right person to get this triaged? Can you get it to the right place? :)

reillyg, can you take a look?

I have patches that add these two events. Just need to go through the Intent to Implement and Ship process before I can land them.

Marking this as an OWP launch bug so create a Chrome Feature entry.

Marking accessibility, privacy and UI as N/A as this is a trivial addition to the API to make Chrome spec compliant and consistent with other browsers. Need to check on whether I can do the same for security and legal. Tests can be imported from web-platform-tests.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3f08a50143c87ad0d41c03a0370884eccb788b39

commit 3f08a50143c87ad0d41c03a0370884eccb788b39
Author: reillyg <reillyg@chromium.org>
Date: Mon Mar 06 18:26:49 2017

Implement DeviceMotionEvent constructor.

This patch adds the DeviceMotionEvent constructor as defined in the
spec:

https://w3c.github.io/deviceorientation/spec-source-orientation.html#devicemotion

DeviceAccelerationInit, DeviceMotionEventInit and DeviceRotationRateInit
IDL dictionaries are added as dependencies.

BUG= 651767 

Review-Url: https://codereview.chromium.org/2720943002
Cr-Commit-Position: refs/heads/master@{#454893}

[add] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceAccelerationInit.idl
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionData.cpp
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionData.h
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionEvent.cpp
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionEvent.h
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionEvent.idl
[add] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceMotionEventInit.idl
[add] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/device_orientation/DeviceRotationRateInit.idl
[modify] https://crrev.com/3f08a50143c87ad0d41c03a0370884eccb788b39/third_party/WebKit/Source/modules/modules_idl_files.gni

Missed the M-58 branch. This is not time critical so targeting launch in M-59 as the patches are landing now.

Updating launch flags to indicate that this has gotten the necessary number of LGTMs on the Intent to Implement and Ship thread:

https://groups.google.com/a/chromium.org/d/msg/blink-dev/7hkppntYQxc/ADSGnvWGDwAJ

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e559b21a078a2f02e02613f5cbf805903bcd8a17

commit e559b21a078a2f02e02613f5cbf805903bcd8a17
Author: reillyg <reillyg@chromium.org>
Date: Tue Mar 07 21:56:29 2017

Implement DeviceOrientationEvent constructor.

This patch adds the DeviceOrientationEvent constructor as defined in the
spec:

https://w3c.github.io/deviceorientation/spec-source-orientation.html#deviceorientation

The DeviceOrientationEventInit IDL dictionary is added as a dependency.

BUG= 651767 

Review-Url: https://codereview.chromium.org/2720003003
Cr-Commit-Position: refs/heads/master@{#455234}

[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationData.cpp
[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationData.h
[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationEvent.cpp
[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationEvent.h
[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationEvent.idl
[add] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationEventInit.idl
[modify] https://crrev.com/e559b21a078a2f02e02613f5cbf805903bcd8a17/third_party/WebKit/Source/modules/modules_idl_files.gni

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fec2991e99c468610b90b26f1aa017cfe2834af8

commit fec2991e99c468610b90b26f1aa017cfe2834af8
Author: reillyg <reillyg@chromium.org>
Date: Tue Mar 07 23:48:53 2017

W3CImportExpectations: Un-skip wpt/orientation-event.

Now that the DeviceMotionEvent and DeviceOrientationEvent constructors
are implemented the majority of these tests should pass.

BUG= 651767 

Review-Url: https://codereview.chromium.org/2737653003
Cr-Commit-Position: refs/heads/master@{#455294}

[modify] https://crrev.com/fec2991e99c468610b90b26f1aa017cfe2834af8/third_party/WebKit/LayoutTests/W3CImportExpectations

Updated the chromestatus.com entry to reflect that this is now enabled by default in M-59. Marking this bug as fixed as there is no further action necessary in order to ship.

https://www.chromestatus.com/feature/4659236399218688