74959 Make Linux apps non-unique by default. (cla: yes, tool)

74972 Show an X when images can’t load. (cla: yes, framework, waiting for tree to go green)

74992 [flutter_tools] move some fakes out of mocks.dart (cla: yes, tool, waiting for tree to go green)

74994 [flutter_tools] remove mock SystemClock (cla: yes, tool, waiting for tree to go green)

74995 [flutter_tools] remove mock android device from log reader test (cla: yes, tool, waiting for tree to go green)

74999 [flutter_tools] remove most usage of MockDevice in resident runner test (cla: yes, tool, waiting for tree to go green)