commit 03b1013d9a855aba76fa626a640b08b95146154f
author junov <junov@chromium.org> Wed Sep 28 21:52:55 2016
committer Commit bot <commit-bot@chromium.org> Wed Sep 28 21:54:38 2016
tree 97ecbb0a6b88f8904834f33529e724eeb59a9451
parent 035eb12a2d163d3d3c9185f800acd3d800d56444

Cancel GPU acceleration for 2D canvas when drawing very large images

GPU texture upload overhead is often prohibitively expensive when
drawing very large images into a canvas. This change adds an
heuristic to trigger a fallback to software rendering when this
happens

TBR=kbr@chromium.org
BUG=367355
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2362363002
Cr-Commit-Position: refs/heads/master@{#421651}