Commits on Aug 14, 2019

1. [OT-PW] Animation integration with new CC impl …

   This CL is for Off-thread PaintWorklet animation
   integration described in this design doc:
   https://docs.google.com/document/d/1a7gO6cBxsJhn53akuJuieUiXvB74vvEmFDyKww8NKdw/edit#
   
   Right now this CL handles composited custom property animations
   only, handling native properties should be simpler. Also,
   right now we only support custom properties that represent
   numerical values.
   
   Here is a summary of the main changes:
   A new class AnimatedPaintWorkletTracker is created and LTHI
   keeps an instance of it. The new class maintains a hashmap
   such that when CC animation ticks, LTHI is able to update the
   custom property values for corresponding PaintWorkletInput. And
   also that when LTHI needs to dispatch paint job to the worklet
   thread, it is able to identify which paint worklets are dirty.
   
   Other changes are mostly plumbing needs associated with the
   above changes.
   
   Bug: 956650
   Change-Id: If27d6d21cf8fab31e0a2719d81b61cae3d4f3268
   Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1614120
   Commit-Queue: Xida Chen <xidachen@chromium.org>
   Reviewed-by: Robert Flack <flackr@chromium.org>
   Reviewed-by: Emil A Eklund <eae@chromium.org>
   Reviewed-by: Khushal <khushalsagar@chromium.org>
   Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
   Cr-Commit-Position: refs/heads/master@{#687049}

   

   xidachen authored and chromium-wpt-export-bot committed Aug 14, 2019
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