Make fillInDrmInfoDefaults_ static
Make fillInDrmInfoDefaults_ static

As we look to make drm engine initialized with media key
configurations that will be made with static helpers, we
need fillInDrmInfoDefaults to be static too.

Change-Id: Ia5df0af97b0b3ef784f0b6d45b09e974c4e42617

tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player