The Drawer should animate out when popped off the navigator
The Drawer should animate out when popped off the navigator

Now with more clear ownership over the Performance.

flutter/flutter,Hixie/flutter,tvolkert/flutter,cbracken/flutter,flutter/flutter,turnidge/flutter,flutter/flutter,flutter/flutter,cbracken/flutter,tvolkert/flutter,flutter/flutter,flutter/flutter,tvolkert/flutter,jason-simmons/flutter,aghassemi/flutter,turnidge/flutter,tvolkert/flutter,tvolkert/flutter,Hixie/flutter,flutter/flutter,tvolkert/flutter,jason-simmons/flutter,flutter/flutter,cbracken/flutter,cbracken/flutter,cbracken/flutter,tvolkert/flutter,cbracken/flutter,aghassemi/flutter,cbracken/flutter,cbracken/flutter,Hixie/flutter,turnidge/flutter,turnidge/flutter,Hixie/flutter,cbracken/flutter,cbracken/flutter,Hixie/flutter,Hixie/flutter,jason-simmons/flutter,flutter/flutter,jason-simmons/flutter,Hixie/flutter,aghassemi/flutter,Hixie/flutter,aghassemi/flutter,Hixie/flutter,tvolkert/flutter,flutter/flutter,turnidge/flutter,tvolkert/flutter,Hixie/flutter,tvolkert/flutter