GitLab

In order to testing PWAs with service worker, this CL make PWA story set
in loading.mobile use cahce_temperature state COLD, WARM and HOT.
Also this removes the following pages from test to reduce the total
execution time.
GuitarTuner
InboxAttack
Pokedex
2048
TrainedToThrill
TownWork

cache_temperature.HOT is added in https://crrev.com/3011263002/
Design doc of perf benchmark for PWA:
https://docs.google.com/document/d/1Nf97CVp1X7aSqvAspyJ7yOCDyr1osUNrnfrGwZ_Yuuo/edit?usp=sharing

Bug: 736697
Change-Id: Iecdbe28f59d3378f3c18619d058a527231a6cfc3
Reviewed-on: https://chromium-review.googlesource.com/684034
Commit-Queue: Yuki Yamada <yukiy@google.com>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505313}