Google Chrome	63.0.3239.84 (Official Build) (64-bit)
Revision	8f51ed0e633e109109762a3deb18a50e8c138819-refs/branch-heads/3239@{#643}
OS	Mac OS X 10.12.6
JavaScript	V8 6.3.292.46

This is on my Trashcan Mac.

What steps will reproduce the problem?
(1) Open http://hammerjs.github.io/
(2) Scroll down the "Try It" section.
(3) Click and drag left and right in the Pan image.

Forking this from 794690 to investigate skia side of the issue. Here is a trace with the use of skia's image cache during raster. The DecodingImageGenerator::getPixels events during raster of a single tile show the same generator id indicating a decode of the same image. To repro this, force the use of skia's cache by commenting out this code (https://cs.chromium.org/chromium/src/cc/tiles/tile_manager.cc?q=tile_manager.cc&sq=package:chromium&dr&l=116).

 

Deleted: trace_color_correct_skia.json.gz 1.0 MB

trace_color_correct_skia.json.gz 1.0 MB Download