[perf_skottiewasm_lottieweb] Explicit window sizing

We're currently running with Puppeteer defaults (800x600), which
doesn't match our animation size.

  - set the Puppeteer viewport to 1000x1000
  - set the browser window size to the same

The latter is mostly useful for manual/non-headless runs.

Change-Id: Icce975ae89fc9375fdf7d8c458abf7223e844c82
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/227057
Auto-Submit: Florin Malita <fmalita@chromium.org>
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Ravi Mistry <rmistry@google.com>
2 files changed