Change Closure Mousewheel Events to be Non-Passive When Calling Prevent Default
Change Closure Mousewheel Events to be Non-Passive When Calling Prevent Default

SliderBase: The listener scrolls along a slider when the mousewheel scrolls. Doing so requires preventing default so we need to make the listener non-passive. There were no observed differences in Chrome 73 (Checked the analytics trendline slider).

RELNOTES: An event handling change.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=237250036

google/closure-library,lucidsoftware/closure-library,google/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,google/closure-library,google/closure-library,google/closure-library