Add 2-minute src videos and tests to the media story sets.

The new roughness and freezing metrics require longer playback
stories. The memoryMetric is not measured for these stories.

Add measure_memory parameter to allow this to be changed per story
instead of needing a new subclass of _MediaPage.

Reformat code per presubmit checks.

Change-Id: Ia81aaa6a372596b2a27e181413035fe16c4129d6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2594169Reviewed-by: Frank Liberato <liberato@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Krystal Loh <kxloh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#839139}

tools/perf/benchmark.csv

@@ -31,8 +31,8 @@ kraken,hablich@chromium.org,Blink>JavaScript,,
 load_library_perf_tests,"xhwang@chromium.org, jrummell@chromium.org",Internals>Media>Encrypted,,
 loading.desktop,"kouhei@chromium.org, ksakamoto@chromium.org",Blink>Loader,https://bit.ly/loading-benchmarks,"abridged,cache_temperature_cold,cache_temperature_warm,international,intl_ar_fa_he,intl_es_fr_pt_BR,intl_hi_ru,intl_ja_zh,intl_ko_th_vi,typical"
 loading.mobile,"kouhei@chromium.org, ksakamoto@chromium.org",Blink>Loader,https://bit.ly/loading-benchmarks,"abridged,cache_temperature_cold,cache_temperature_hot,cache_temperature_warm,easy_ttfmp,easy_tti,global,pwa,tough_ttfmp,tough_tti"
-media.desktop,dalecurtis@chromium.org,Internals>Media,https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark/harnesses/media.md,"aac,audio_only,audio_video,av1,background,beginning_to_end,busyjs,cns,h264,is_4k,is_50fps,mp3,mse,opus,seek,src,video_only,vorbis,vp8,vp9"
-media.mobile,dalecurtis@chromium.org,Internals>Media,https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark/harnesses/media.md,"aac,audio_only,audio_video,background,beginning_to_end,busyjs,cns,h264,mp3,mse,opus,seek,src,video_only,vorbis,vp9"
+media.desktop,dalecurtis@chromium.org,Internals>Media,https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark/harnesses/media.md,"aac,audio_only,audio_video,av1,background,beginning_to_end,busyjs,cns,h264,is_2min,is_4k,is_50fps,mp3,mse,opus,seek,src,video_only,vorbis,vp8,vp9"
+media.mobile,dalecurtis@chromium.org,Internals>Media,https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark/harnesses/media.md,"aac,audio_only,audio_video,background,beginning_to_end,busyjs,cns,h264,is_2min,mp3,mse,opus,seek,src,video_only,vorbis,vp9"
 media_perftests,"liberato@chromium.org, dalecurtis@chromium.org",Internals>Media,,
 memory.desktop,erikchen@chromium.org,,,
 octane,hablich@chromium.org,Blink>JavaScript,,

tools/perf/page_sets/media_cases/boat_1080p60fps_vp9.webm.sha1

+6e8ab4f05ac3fee68e89b860beeed1cf882c8f5d
\ No newline at end of file

tools/perf/page_sets/media_cases/foodmarket_720p30fps.mp4.sha1

+f767cee6477fc4065145ed4b8c7c52d13350069b
\ No newline at end of file