add LayoutTests/fast/js/switch-behaviour.html to the test list. This may or may not be due to the last couple of webkit merges, but it showed up after them. 
add LayoutTests/fast/js/switch-behaviour.html to the test list.
This may or may not be due to the last couple of webkit merges, but it showed
up after them. 

BUG=15217
TEST=webkit bots turn green
TBR=awalker

Review URL: http://codereview.chromium.org/146099

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@19155 0039d316-1c4b-4281-b951-d872f2087c98

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