Remove unused chrome/test/gpu/test_support_gpu.gypi

BUG=none
R=kbr@chromium.org

Review URL: https://codereview.chromium.org/59063007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233295 0039d316-1c4b-4281-b951-d872f2087c98
Disable ShowAppListBrowserTest.ShowAppListFlag on win.

BUG=315677
R=dgrogan@chromium.org
TBR=tapted@chromium.org

Review URL: https://codereview.chromium.org/61553005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233296 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233295
SVN changes up to revision 233296