Previously the AdbLogReader did async setup in the StreamController.onListen callback, specifically it would query the api version and start the adb process. If the log subscription was cancelled before this setup completed, then the log output could (haven't confirmed) get added to a closed controller, causing the above state error.
This worksaround an issue with the latest version of package_config which doesn't handle
multiple dart packages sharing the same source directory. In this case, the fuchsia dart_tool
targets were sharing a directory with their dependency, :flutter_tools
* 7c612de34 Roll fuchsia/sdk/core/linux-amd64 from cXgMr... to cTw2C... (flutter/engine#16970)
* 6cfa7fcad fix shadows and mask filter blurs (flutter/engine#16963)
* bfebadfce Roll src/third_party/skia 012f8497802e..93a2a6b8badb (4 commits) (flutter/engine#16974)
* 47963a598 Roll src/third_party/skia 93a2a6b8badb..74055566bd14 (2 commits) (flutter/engine#16981)
* 98f994184 [fuchsia] fix broken flows when under high load (flutter/engine#16834)
* fe051e08a Fix issue viewdidload call while init FlutterViewController (flutter/engine#16672)
* 0ad54c210 [web] Fixes IE11 crash due to missing canvas ellipse support and font polyfill failure (flutter/engine#16965)
* f6435de88 Roll fuchsia/sdk/core/mac-amd64 from J6ct_... to 95geB... (flutter/engine#16982)
* 43971caf0 Roll src/third_party/skia 74055566bd14..54de2fa48d85 (3 commits) (flutter/engine#16983)
* 45e61a6ff Roll fuchsia/sdk/core/linux-amd64 from cTw2C... to K1wwe... (flutter/engine#16984)
* 1ab5c3641 Roll src/third_party/skia 54de2fa48d85..beaaf4700f50 (3 commits) (flutter/engine#16987)
* e2c04549a remove 10s timeouts from tests (flutter/engine#16988)
* dfc9c126d Roll src/third_party/skia beaaf4700f50..6e58290ba639 (9 commits) (flutter/engine#16990)
* eddda8032 fushia licenses fix (flutter/engine#16992)
* c15f239c1 documented fluttertexture.h (flutter/engine#16950)
* e1ba7a18f Roll src/third_party/skia 6e58290ba639..24a8e9e170f7 (5 commits) (flutter/engine#16996)
* fc5963d2d [web] Engine integration test (flutter/engine#16930)
* d323bace5 doxygen tooling updates and doxygen for FlutterCodecs.h (flutter/engine#16947)
* 03ddc1d4d Started deleting .DS_Store files so licenses can run on mac os x. (flutter/engine#16998)
* 30a82927b Roll src/third_party/skia 24a8e9e170f7..cf573d844da6 (4 commits) (flutter/engine#17004)
* d0319631b Roll fuchsia/sdk/core/mac-amd64 from 95geB... to hW33F... (flutter/engine#17006)
* 41b371d0b Roll fuchsia/sdk/core/linux-amd64 from K1wwe... to FGMpI... (flutter/engine#17007)
* 619acd58c Revert "fix shadows and mask filter blurs (#16963)" (flutter/engine#17008)
* Fix for negative padding from a curve in AnimatedPadding.
* Added a EdgeInsets.clamp function that would return an EdgeInsets instance instead of a _MixedEdgeInsets used by the base class. This was causing some tests to fail that didn't have a text direction.
