[DeviceLight] Add renderer+common parts
Adding the Renderer and Common part in the content side for the DeviceLight API.
Add Unit tests for deviceLight pump
Add DeviceLight support in renderer_webkitplatformsupport_impl.h|cc
The default polling time interval of DeviceLightEventPump
is right now set as of 200 milliseconds.
(device motion/orientation = 50ms)
In Firefox (Android) implementation, DeviceLight's frequency of
update is set as SensorManager.SENSOR_DELAY_NORMAL which in Android
parlance translates to 200 milliseconds delay which is 5 times a second.
Ofcourse the delay is only a suggested delay, system typically uses a
smaller delay.
BUG=336424
Review URL: https://codereview.chromium.org/286793002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@280306 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: 13a878290c1475ad9f99b9fb7c87ace39e0ad6e5
diff --git a/ipc/ipc_message_start.h b/ipc/ipc_message_start.h
index e89f285..5b4b217 100644
--- a/ipc/ipc_message_start.h
+++ b/ipc/ipc_message_start.h
@@ -43,6 +43,7 @@
ClipboardMsgStart,
BlobMsgStart,
AppCacheMsgStart,
+ DeviceLightMsgStart,
DeviceMotionMsgStart,
DeviceOrientationMsgStart,
DesktopNotificationMsgStart,