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tommi@chromium.org authored
These methods currently all have a static variable that caches the queried value. This causes a problem in unit tests where values can change between tests. I moved them outside of the AudioDevice class and grouped in their own namespace which owns the globally cached state and allows the cache to be invalidated. R=henrika TEST=Run *WebRTC* tests in content. Review URL: http://codereview.chromium.org/8588030 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110695 0039d316-1c4b-4281-b951-d872f2087c98
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