ui::LocatedEvent location() returns gfx::PointF

ui::LocatedEvent bounds() returns gfx::PointF (WIP).

Closed based on discussion in: https://codereview.chromium.org/265713007/

This is a largely automated change. I'm hoping I can
find a better approach than this, but this may be a reasonable first step.

Automated portions of the patch are performed by the script located here: http://pastebin.com/raw.php?i=jj3ZKbd3

BUG=337824

[tdresser, 2014-05-01 14:21:02]

Sadrul, do you think this is a decent approach?

If so, can you take a look at 
ui/aura
ui/events
ui/views

[sadrul, 2014-05-02 06:47:18]

Thanks! I was hoping we would take this opportunity to clean up some of the API
as well (and use PointF/RectF locally in some functions) where it makes sense,
instead of just blindly flooring immediately. See
https://codereview.chromium.org/265713007/

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h
File ui/events/event.h (right):

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h#newco...
ui/events/event.h:251: gfx::Point root_location() const {
We can make this PointF too?

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h#newco...
ui/events/event.h:264: // crbug.com/337824.
Can we remove this?

[tdresser, 2014-05-02 13:46:39]

I think it makes sense to perform the API cleanup in a separate set of patches.

This CL is pretty much risk-free, and won't require any modifications to tests.

The API modification will require updating tests, and will be a LOT of code.

Didn't we decide that we were going to split up the API cleanup work? I don't
have much time to invest in it.

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h
File ui/events/event.h (right):

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h#newco...
ui/events/event.h:251: gfx::Point root_location() const {
On 2014/05/02 06:47:18, sadrul wrote:
> We can make this PointF too?

Do you think it makes sense to do that in the same patch?

https://codereview.chromium.org/139983009/diff/680001/ui/events/event.h#newco...
ui/events/event.h:264: // crbug.com/337824.
On 2014/05/02 06:47:18, sadrul wrote:
> Can we remove this?

I don't think we can remove this yet. 

In a followup patch we should add a ConvertPointFToTarget method, which would
let us clean this up.