liyuqian a32fc986f3 Add a perf test for picture raster cache (#45050) ... This will catch issues like https://github.com/flutter/flutter/issues/44252, and this test is inspired by the `list_demo` sample app in https://github.com/flutter/flutter/issues/43083#issue-509586473 This is tested locally on a Moto G4 before and after the fix https://github.com/flutter/engine/pull/13710 The `average_frame_rasterizer_time_millis` of this test drops from ~5.4ms to ~4.9ms after that fix.		2019-11-19 15:48:41 -08:00
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src	Add a perf test for picture raster cache (#45050)	2019-11-19 15:48:41 -08:00
common.dart	Add a perf test for picture raster cache (#45050)	2019-11-19 15:48:41 -08:00
main.dart	Add a perf test for picture raster cache (#45050)	2019-11-19 15:48:41 -08:00