Use MacOS's CoreGraphics PDF Rasterizer in DM

BUG=3061

Review URL: https://codereview.chromium.org/650323004
Fix ability to capture archives in webpages_playback.py

Updated all page sets to match the file name. This is to make it easier to call record_wpr with the page set class name.
Also updated the wait time for baidu to 60 seconds.

BUG=skia:3049

Review URL: https://codereview.chromium.org/683473002