Two optional parameters were added for ACTION_CLICK.
ACTION_ARGUMENT_CLICK_SPAN_INDEX_INT represents index of ClickableSpan to click on
ACTION_ARGUMENT_CLICK_CHARACTER_INDEX_INT represents index of character.
The first span that added for that character will be triggered.
If none of above parameters are passed with action the view will be clicked
b/17726921
Change-Id: Ia4d3994c1bca950319557ec7cdb2df84314d7519
219b41dd50