virtual/gpu/fast/hidpi/image-set-in-content-dynamic.html flaky crash on win7
virtual/gpu/fast/hidpi/image-set-in-content-dynamic.html flaky crash on win7

TBR=jochen@chromium.org
BUG=245280

Review URL: https://codereview.chromium.org/16225003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@151481 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs