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This patch appears to be responsible for failures on multiple Chrome OS bots.
> Only show start/stop mirroring button when there are multiple displays.
> 
> Also, redirect the page to chrome://settings when only one monitor is
> connected, so we can stop showing the dialog for now. In the future
> we may decide to show the page for some reason.
> 
> BUG=169124
> TEST=manually on parrot
> 
> Review URL: https://codereview.chromium.org/11818043

TBR=hshi@google.com
Review URL: https://codereview.chromium.org/11824070

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176113 0039d316-1c4b-4281-b951-d872f2087c98