Pass MotionEvent tilt angles to Blink on Android.

This extends event handlers to pass tilt angles from Android MotionEvent
to Blink touch points, so that on the Blink side, PointerEvent tiltX and
tiltY can be filled with real tilt angles.

This CL is a part of a patch series:
 1. https://codereview.chromium.org/1253183005/
    for new WebPointerProperties fields
 2. https://codereview.chromium.org/1260693003/
    for eventSender web pointer property support
 3. https://codereview.chromium.org/1192563002/
    for handling tilt in Blink event handlers
 4. https://codereview.chromium.org/1417803002/
    (this)

This CL is based on the abandoned CL at
https://codereview.chromium.org/1187273004/

BUG=514360

Review URL: https://codereview.chromium.org/1417803002

Cr-Commit-Position: refs/heads/master@{#357471}

1 files changed, 1 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
index 062bd88..afbb3aa 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -159,6 +159,7 @@ Eduardo Lima (Etrunko) <eblima@gmail.com>
 Eduardo Lima (Etrunko) <eduardo.lima@intel.com>
 Edward Baker <edward.baker@intel.com>
 Edward Crossman <tedoc2000@gmail.com>
+Eero Häkkinen <eero.hakkinen@intel.com>
 Eero Häkkinen <e.hakkinen@samsung.com>
 Egor Starkov <egor.starkov@samsung.com>
 Ehsan Akhgari <ehsan.akhgari@gmail.com>