Commits on Jan 24, 2020

1. Bug 1605283 - Improve support for invalidation debugging and testing … …

   …r=gw
   
   Second part: trace the updates that are sent to the DataStore, and save
   at least the Insert/Remove and ItemUID as part of the wr-capture.
   (We could expand this with more info, eg. the actual Keys, later).
   
   TileView then reads them back and generates a color coded report to
   overlay with the page view.  This helps to see the types and amounts of
   interned primitives that lead to cache invalidations.
   
   Differential Revision: https://phabricator.services.mozilla.com/D60619
   
   [ghsync] From https://hg.mozilla.org/mozilla-central/rev/77d7f22c81c4ac00c895b46f42a3083875fda4b2

   

   bpeersmoz authored and moz-gfx committed Jan 24, 2020
   7c43490

2. Bug 1611176 - Avoid expensive memmoves when adding render tasks. r=gw …

   On pages with many render tasks (typically a lot of text shadows), we spend a lot of time moving RenderTask which is a fairly large struct into the render graph's buffer. This patch avoids it by using the VecHelper trick of allocaitng space before initializing the value. Some RenderTask::new_* methods which take the render task graph in parameter were modified to add the task and return the task ID to work around borrow-checking restriction.
   
   Differential Revision: https://phabricator.services.mozilla.com/D60854
   
   [ghsync] From https://hg.mozilla.org/mozilla-central/rev/e30053699db0bc3c77888e789f0ba576f0904d1f

   

   nical authored and moz-gfx committed Jan 24, 2020
   d7aba66

3. Backed out changeset 77d7f22c81c4 (bug 1605283) for wrench build bust… …

   …ages on a CLOSED TREE
   
   [ghsync] From https://hg.mozilla.org/mozilla-central/rev/2caf5d24cf244b3022608b794ed88bb83313e5d0

   

   AndreeaPavel authored and moz-gfx committed Jan 24, 2020

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