Revert of Remove override of View::HitTestRect() from ImageView

Revert of Remove override of View::HitTestRect() from ImageView (https://codereview.chromium.org/282403002/)

Reason for revert:
Breaks mouse hover on image buttons (see https://code.google.com/p/chromium/issues/detail?id=376478). tdanderson@ will investigate.

Original issue's description:
> Remove override of View::HitTestRect() from ImageView
> 
> The override of View::HitTestRect() in ImageView forces hit
> testing to fail if the |interactive_| member is false, which
> prevents the view from accepting events. Since the |interactive_|
> member is unrelated to location, it is better to move this logic
> into an override of EventTarget::CanAcceptEvent() instead.
> 
> BUG=374325
> TEST=none
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=272117

TBR=sadrul@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=374325

[tdanderson, 2014-05-22 20:59:52]

Created Revert of Remove override of View::HitTestRect() from ImageView

[commit-bot: I haz the power, 2014-05-22 21:02:00]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tdanderson@chromium.org/286903022/1

[tdanderson, 2014-05-22 21:02:44]

The CQ bit was unchecked by tdanderson@chromium.org

[tdanderson, 2014-05-22 21:03:06]

On 2014/05/22 20:59:52, tdanderson wrote:
> Created Revert of Remove override of View::HitTestRect() from ImageView

erg@ beat me to it: https://codereview.chromium.org/296703012/