Support multiple files for AEC dump.
* This adds support for AEC dump files in multiple tabs and if multiple getUserMedia calls are made in one tab.
* Each AEC dump consumer registers with the browser to recieve a file handle when AEC dump is enabled.
* Add dedicated aec dump message filter an messages file.
* Works with and without track-processing.
NOTRY=true
BUG=350347
Review URL: https://codereview.chromium.org/334743006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278148 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: da9f30ae881fe63b37b17197d6a18b305d2154f8
1 file changed