Unreviewed, marking gpu/fast/hidpi/image-set tests as timing out on win
Unreviewed, marking gpu/fast/hidpi/image-set tests as timing out on win

The following tests are timing out on win7:
virtual/gpu/fast/hidpi/image-set-in-content-dynamic.html
virtual/gpu/fast/hidpi/image-set-simple.html

http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7/builds/5714/steps/webkit_tests/logs/stdio

I'm marking them as Timeout.

BUG=245611
TBR=vollick@chromium.org

Review URL: https://codereview.chromium.org/16652008

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@152162 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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