Bug fix for building the hover target list

lastHoverTarget should be updated even though lastHoverTarget is not null.
If not, the hover target list cannot have more than one hover target.

Change-Id: I21b49e8cbf3657321b2f1f2c20a3bdeb7f07bd48
Signed-off-by: Sangkyu Lee <sk82.lee@lge.com>
Properly rotate full [-pi, +pi] orientation range if available

The code currently in place assumes that orientation has a range
of [-pi/2, +pi/2] as may be found with a touch digitizer. However,
when used with a digitzer that can report the full [-pi, +pi] range
of orientations (e.g. a stylus) the calculations here are incorrect.

This patch checks if the post-rotation value is out of range for
the axis, and wraps it back around.

Change-Id: I03a22f7bf9526a5d995df1a18430d6dd24c6d6ee
Add additional Method that check whether a table is empty or not

Application Devleopers are using queryNumEntries API
implemented by "COUNT(*)" to check whether a table is empty or not.
COUNT(*)  has to process the entire table to compute the result.
But, "EXISTS" can stop after a single matching row has been found.
So, Using "EXISTS" is more faster than "COUNT(*)"
I added new API using "EXISTS" to check whether a table is empty or not

Change-Id: Idcc2633d0a5349c59f41e125cf34c9dc6622cdbe
Add missing ACTION_MEDIA_UNMOUNTED intent

When an SD card is removed without the user unmounting, the intent
ACTION_MEDIA_BAD_REMOVAL is fired but is missing the preceeding
ACTION_MEDIA_UNMOUNTED which is needed to keep UI consistency.

Now when bad media removal is detected an ACTION_MEDIA_UNMOUNTED
intent is sent before the ACTION_MEDIA_BAD_REMOVAL.

Change-Id: I133300f42bafab141351e796d7cfc13c15d133e0
Fix AMotionEvent_getHistorical* to take const AInputEvent* motion_event

See b.android.com/55873

Change-Id: Idff7b71480991e16f57e55748fafa57d5827b10b
Merge "Add additional Method that check whether a table is empty or not"
Merge "Properly rotate full [-pi, +pi] orientation range if available"
Merge "Bug fix for building the hover target list"
Merge "Add missing ACTION_MEDIA_UNMOUNTED intent"
Merge "Fix AMotionEvent_getHistorical* to take const AInputEvent* motion_event"