aura: Introduce EnvInputStateController for updating Env input states.

aura: Introduce EnvInputStateController for updating Env input states.

aura::Env stores some information about the input events (e.g. the latest
location of the mouse cursor, current event-flags, whethere there is any
active touch point).  Move the code that updates these states out of
WindowEventDispatcher into EnvInputStateController, so that it can be
used in NativeWidgetMus to update the Env states (since NativeWidgetMus
will directly dispatch events to Widget, and so WindowEventDispatcher
will not be used).

BUG=616101
Committed: https://crrev.com/9d8d13f5ea46d5f5450aecc28edb3c9613977fd8
Cr-Commit-Position: refs/heads/master@{#400813}

[sadrul, 2016-06-20 20:05:37]

sadrul@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2016-06-20 21:54:05]

LGTM

[sadrul, 2016-06-20 22:27:30]

The CQ bit was checked by sadrul@chromium.org

[commit-bot: I haz the power, 2016-06-20 22:27:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2080303003/1

[commit-bot: I haz the power, 2016-06-20 22:33:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-20 22:39:28]

Description was changed from

==========
aura: Introduce EnvInputStateController for updating Env input states.

aura::Env stores some information about the input events (e.g. the latest
location of the mouse cursor, current event-flags, whethere there is any
active touch point).  Move the code that updates these states out of
WindowEventDispatcher into EnvInputStateController, so that it can be
used in NativeWidgetMus to update the Env states (since NativeWidgetMus
will directly dispatch events to Widget, and so WindowEventDispatcher
will not be used).

BUG=616101
==========

to

==========
aura: Introduce EnvInputStateController for updating Env input states.

aura::Env stores some information about the input events (e.g. the latest
location of the mouse cursor, current event-flags, whethere there is any
active touch point).  Move the code that updates these states out of
WindowEventDispatcher into EnvInputStateController, so that it can be
used in NativeWidgetMus to update the Env states (since NativeWidgetMus
will directly dispatch events to Widget, and so WindowEventDispatcher
will not be used).

BUG=616101

Committed: https://crrev.com/9d8d13f5ea46d5f5450aecc28edb3c9613977fd8
Cr-Commit-Position: refs/heads/master@{#400813}
==========

[commit-bot: I haz the power, 2016-06-20 22:39:29]

Patchset 1 (id:??) landed as
https://crrev.com/9d8d13f5ea46d5f5450aecc28edb3c9613977fd8
Cr-Commit-Position: refs/heads/master@{#400813}