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sky@chromium.org authored
situation where the opener ends up the same as the tab being closed. The only way I could see this happening is a new tab getting the same address as a tab that was deleted. This seems unlikely, but I've added the code to make sure we clean up properly when a tab is deleted. I'm also adding a couple more checks. BUG=34135 TEST=none Review URL: http://codereview.chromium.org/6346008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71800 0039d316-1c4b-4281-b951-d872f2087c98
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