am 76d71537: (-s ours) am 802a6cc1: am 67261c96: am 52da72f6: De-flake WebView zoom/scale change tests [DO NOT MERGE]

* commit '76d71537e130c1d9109bb7158cc1bb5e25e20c37':
  De-flake WebView zoom/scale change tests [DO NOT MERGE]