Enable double tap only if page is scalable.

Enable double tap only if page is scalable.

[Title] Enable double tap only if page is scalable.
[Issue#] N/A
[Problem] The buttons of web applications which are implemented to use click event respond too slow.
[Cause] The click event is occured after 0.4 ms in order to check double tap.
[Solution] Actually, the double tap is not used in the page which is not scalable.
           So, disable double tap for non-scalable page and make click directly.

Change-Id: Idfccad41ad9ce9bec3cd55b1272263fc10af76cd