Extend support for "preventMouseEvents" for cases where "touchend" is declared without "click".
Extend support for "preventMouseEvents" for cases where "touchend" is declared without "click".

I created dependency to "click" for "preventMouseEvents" support unintentionally. It's perfectly valid to just cancel mouse events based on the "touchevent" alone.

	Change on 2015/04/14 by dvoytenko <dvoytenko@google.com>

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=91143467

google/jsaction,google/jsaction