WindowManagerApp should recognize gestures

WindowManagerApp should recognize gestures

This CL teaches WindowManagerApp to recognize gestures and dispatch gesture
events. To recognize the gestures, we use ui/gesture_recognizer, which is a
port of Android's gesture recognizer. Some of these classes use the term
"aura", but they don't actually depend on the Aura system.

As part of this CL, I've removed a couple locations that were querying base's
command line static. Mojo doesn't use this static and not all window managers
have it initialized.

R=erg@chromium.org, sky@chromium.og

Committed: https://chromium.googlesource.com/external/mojo/+/29fd00acdefa17fcc97679d834dc60fa70a0d141

[abarth-chromium, 2015-01-14 00:15:37]

abarth@chromium.org changed reviewers:
+ erg@chromium.org

[Elliot Glaysher, 2015-01-14 00:27:41]

https://codereview.chromium.org/789363004/diff/20001/mojo/converters/input_ev...
File mojo/converters/input_events/input_events_type_converters.cc (right):

https://codereview.chromium.org/789363004/diff/20001/mojo/converters/input_ev...
mojo/converters/input_events/input_events_type_converters.cc:150: }
I suspect you need to do some sort of "} else if (input.IsGestureEvent()) {"
here to serialize |details_|? Maybe with additional structs in the mojom?

(Or is this data fine to throw away?)

https://codereview.chromium.org/789363004/diff/20001/ui/events/BUILD.gn
File ui/events/BUILD.gn (right):

https://codereview.chromium.org/789363004/diff/20001/ui/events/BUILD.gn#newco...
ui/events/BUILD.gn:114: "gestures/gesture_provider_aura.cc",
While you're here, could you please rename this file? Even if it is just
s/aura/impl/g;

[abarth-chromium, 2015-01-14 00:29:02]

https://codereview.chromium.org/789363004/diff/20001/mojo/converters/input_ev...
File mojo/converters/input_events/input_events_type_converters.cc (right):

https://codereview.chromium.org/789363004/diff/20001/mojo/converters/input_ev...
mojo/converters/input_events/input_events_type_converters.cc:150: }
On 2015/01/14 at 00:27:40, Elliot Glaysher wrote:
> I suspect you need to do some sort of "} else if (input.IsGestureEvent()) {"
here to serialize |details_|? Maybe with additional structs in the mojom?
> 
> (Or is this data fine to throw away?)

Yeah...  Maybe I'll add a TODO(abarth) for now.

https://codereview.chromium.org/789363004/diff/20001/ui/events/BUILD.gn
File ui/events/BUILD.gn (right):

https://codereview.chromium.org/789363004/diff/20001/ui/events/BUILD.gn#newco...
ui/events/BUILD.gn:114: "gestures/gesture_provider_aura.cc",
On 2015/01/14 at 00:27:41, Elliot Glaysher wrote:
> While you're here, could you please rename this file? Even if it is just
s/aura/impl/g;

Sure thing.

[abarth-chromium, 2015-01-14 00:40:53]

PTAL

[Elliot Glaysher, 2015-01-14 00:50:26]

lgtm

[abarth-chromium, 2015-01-14 01:01:14]

Committed patchset #3 (id:40001) manually as
29fd00acdefa17fcc97679d834dc60fa70a0d141 (presubmit successful).