minyue f07fb00131 Separating video settings in VideoQualityTest.
This is a simple refactoring of VideoQualityTest. It will help in adding audio related settings to VideoQualityTest.

BUG=

Review-Url: https://codereview.webrtc.org/2312613003
Cr-Commit-Position: refs/heads/master@{#14139}
2016-09-08 15:20:16 +00:00
..
2016-05-10 14:31:58 +00:00
2016-05-10 14:31:58 +00:00