Mark textureId as @visibleForTesting. (#779)
Mark textureId as @visibleForTesting. (#779)

Users should not access the texture ID directly.
flutter/plugins,tvolkert/plugins,flutter/plugins,tvolkert/plugins,tvolkert/plugins,flutter/plugins,flutter/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,flutter/plugins,flutter/plugins,mehmetf/plugins,mehmetf/plugins,mehmetf/plugins,mehmetf/plugins,mehmetf/plugins