[Feature Request] Android: Set localExtras via MoPubStreamAdPlacer



Currently (as of MoPub Android SDK 4.9.0) MoPubStreamAdPlacer is 2 degrees away from the MoPubNative class, making it difficult to pass localExtras. That is, a MoPubStreamAdPlacer wraps NativeAdSource which wraps MoPubNative.

It would be great to add a public setLocalExtras() to MoPubStreamAdPlacer, which would pass it down to MoPubNative, so that developers would not need to copy classes or do other ugly workarounds to set the localExtras field on native ads.