tree ede2564bc162485d21c03117ca410e1e557af9f5
parent 2fc454fa9ab4c7cfb44afbd5377dbf99428466e6
author Vikas Soni <vikassoni@chromium.org> 1519761625 +0000
committer Zhenyao Mo <zmo@chromium.org> 1519761625 +0000

Fix tabs sharing TEXTURE_2D_ARRAY/TEXTURE_3D data.

In linux and android, we are seeing an issue where texture data from one
tab overwrites the texture data of another tab. This is happening for apps
which are using webgl2 texture of type TEXTURE_2D_ARRAY/TEXTURE_3D.
Due to a bug in virtual context save/restore code for above texture formats,
the texture data is not properly restored while switching tabs. Hence
texture data from one tab overwrites other.

This CL has fix for that issue, an update for existing test expectations
and a new unit test for this bug.


Bug: 788448
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Ie933984cdd2d1381f42eb4638f730c8245207a28
Reviewed-on: https://chromium-review.googlesource.com/930327
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: vikas soni <vikassoni@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#539111}(cherry picked from commit d128139d53e9268e87921e82d89b3f2053cb83fd)
Reviewed-on: https://chromium-review.googlesource.com/939878
Cr-Commit-Position: refs/branch-heads/3325@{#610}
Cr-Branched-From: bc084a8b5afa3744a74927344e304c02ae54189f-refs/heads/master@{#530369}