[PA] Disable lazy commit on non-Windows platforms
crrev.com/c/2563385 showed a lot of good PMF improvements on Windows, but came at a cost of regressions on non-Windows platforms: https://chromeperf.appspot.com/group_report?rev=833127 This is possibly related to the fact that my CL took out the optimization to not change permissions on recommit, out of necessity. This affects only non-Windows platforms, because Windows doesn't have this optimization to begin with. Therefore this CL disables it everywhere except Windows. Bug: 1155066, 1155062, 1155172, 1155172 Change-Id: Ie76801e58c8f65aa66cd9d37ad76020f0009149d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2569143 Commit-Queue: Bartek Nowierski <bartekn@chromium.org> Commit-Queue: Kentaro Hara <haraken@chromium.org> Auto-Submit: Bartek Nowierski <bartekn@chromium.org> Reviewed-by:Kentaro Hara <haraken@chromium.org> Cr-Commit-Position: refs/heads/master@{#833633}
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