8324b525dc
Also adds a framework for an AudioManager to be used by both sides (playout and recording). This initial implementation only does very simple tasks like setting up the correct audio mode (needed for correct volume behavior). Note that this CL is mainly about modifying the volume. The added AudioManager is only a place holder for future work. I could have done the same parts in the WebRtcAudioTrack class but feel that it is better to move these parts to an AudioManager already at this stage. The AudioManager supports Init() where actual audio changes are done (set audio mode etc.) but it can also be used a simple "construct-and-store-audio-parameters" unit, which is the case here. Hence, the AM now serves as the center for getting audio parameters and then inject these into playout and recording sides. Previously, both sides acquired their own parameters and that is more error prone. BUG=NONE TEST=AudioDeviceTest R=perkj@webrtc.org, phoglund@webrtc.org Review URL: https://webrtc-codereview.appspot.com/45829004 Cr-Commit-Position: refs/heads/master@{#8875}