Add localized default audio device names.
Add localized strings for the default audio device, the communications
device on Windows and the beamforming virtual input devices on ChromeOS.
Since the media layer can't access Chrome's resource bundle directly,
this adds an indirect mechanism modeled on net/base/net_module.h.
BUG=497001
TEST=The correct "Default" name appears on Linux in Chrome settings. On
a Swanky (which has beamforming support), the correct virtual device
names appear in both Chrome settings and the Hangouts settings dialog.
Review URL: https://codereview.chromium.org/
1339183002
Cr-Commit-Position: refs/heads/master@{#350070}