Reroute Android mouse events to touch event path.

Reroute Android mouse events to touch event path.

This is a partial revert of crrev.com/2054193002 that aimed to
make Android mouse events more logical & consistent. However,
that change made few UI activities impossible through mouse,
like text selection, zoom & scrolling. Until we fix those
for mouse, we are re-diverting mouse events to the touch-event
path through this CL.

BUG=678756
Review-Url: https://codereview.chromium.org/2637143002
Cr-Commit-Position: refs/heads/master@{#444116}
(cherry picked from commit 8bdf02e2b5552def943a60cf8e078918369df6fe)

Review-Url: https://codereview.chromium.org/2637183003 .
Cr-Commit-Position: refs/branch-heads/2924@{#784}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed: https://chromium.googlesource.com/chromium/src/+/77ddb6126ff2f49a01fec01f80db0d70f5d9213e

[mustaq, 2017-01-17 21:16:59]

Description was changed from

==========
Reroute Android mouse events to touch event path.

This is a partial revert of crrev.com/2054193002 that aimed to
make Android mouse events more logical & consistent. However,
that change made few UI activities impossible through mouse,
like text selection, zoom & scrolling. Until we fix those
for mouse, we are re-diverting mouse events to the touch-event
path through this CL.

BUG=678756

Review-Url: https://codereview.chromium.org/2637143002
Cr-Commit-Position: refs/heads/master@{#444116}
(cherry picked from commit 8bdf02e2b5552def943a60cf8e078918369df6fe)
==========

to

==========
Reroute Android mouse events to touch event path.

This is a partial revert of crrev.com/2054193002 that aimed to
make Android mouse events more logical & consistent. However,
that change made few UI activities impossible through mouse,
like text selection, zoom & scrolling. Until we fix those
for mouse, we are re-diverting mouse events to the touch-event
path through this CL.

BUG=678756

Review-Url: https://codereview.chromium.org/2637143002
Cr-Commit-Position: refs/heads/master@{#444116}
(cherry picked from commit 8bdf02e2b5552def943a60cf8e078918369df6fe)

Review-Url: https://codereview.chromium.org/2637183003 .
Cr-Commit-Position: refs/branch-heads/2924@{#784}
Cr-Branched-From:
3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed:
https://chromium.googlesource.com/chromium/src/+/77ddb6126ff2f49a01fec01f80db...
==========

[mustaq, 2017-01-17 21:17:00]

Committed patchset #1 (id:1) manually as
77ddb6126ff2f49a01fec01f80db0d70f5d9213e.