Assert connecting to Activity service under Linux #313

[1111/112628:ERROR:dart_error.cc(16)] Unhandled exception:
'packages/mojo/src/application_connection.dart': Failed assertion: line 84: '!proxy.impl.isBound &&
        (remoteServiceProvider != null) &&
        remoteServiceProvider.impl.isBound' is not true.
#0      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:27)
#1      ApplicationConnection.requestService (packages/mojo/src/application_connection.dart:84)
#2      _Shell._connectToService (packages/flutter/src/services/shell.dart:59)
#3      _Shell.connectToService (packages/flutter/src/services/shell.dart:74)
#4      _initActivityProxy (packages/flutter/src/services/activity.dart:25)
#5      _activityProxy (packages/flutter/src/services/activity.dart:29)
#6      _activityProxy (packages/flutter/src/services/activity.dart:29)
#7      activity (packages/flutter/src/services/activity.dart:30)
#8      activity (packages/flutter/src/services/activity.dart:30)
#9      MyApp.initState (lib/main.dart:102)
#10     StatefulComponentElement._firstBuild (packages/flutter/src/widgets/framework.dart:1120)
#11     ComponentElement.mount (packages/flutter/src/widgets/framework.dart:1032)
#12     Element._inflateWidget (packages/flutter/src/widgets/framework.dart:765)
#13     Element.updateChild (packages/flutter/src/widgets/framework.dart:644)
#14     RenderObjectToWidgetElement.mount (packages/flutter/src/widgets/binding.dart:149)
#15     RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> (packages/flutter/src/widgets/binding.dart:117)
#16     BuildableElement.lockState (packages/flutter/src/widgets/framework.dart:924)
#17     RenderObjectToWidgetAdapter.attachToRenderTree (packages/flutter/src/widgets/binding.dart:114)
#18     WidgetFlutterBinding._runApp (packages/flutter/src/widgets/binding.dart:76)
#19     runApp (packages/flutter/src/widgets/binding.dart:83)
#20     main (lib/main.dart:209)