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Google announced on Google+ and Google AdWords Help forums, quietly, that they now added support to use your YouTube video views to power your remarketing lists in your Google AdWords search campaigns.
Cassie from Google said "you can now use YouTube video views and channel interactions to power remarketing lists in your search campaigns."
With YouTube remarketing lists, you can remarket to people who have previously interacted with your YouTube channel. Now, you can use these audiences with remarketing lists for search ads (RLSA). For example, if you’re a pet food brand with a user following on YouTube, you can now stay on the journey with your customers when they search for “best puppy food” on Google.com. Because you know their intent and interests, you can build a relevant search ad experience.
Here is a screen shot of the setting in AdWords:
Forum discussion at Google+ and Google AdWords Help.
