Clean up unnecessary Create() factory functions in platform/audio

As advised in [1], this CL removes unnecessary Foo::Create() in
//third_party/blink/renderer/platform/audio and make their constructors
public, then make the callers use std::make_unique<Foo> instead
of their Create() factory functions.


Bug: 939691
Change-Id: Ic613dd9ef74061fe92234fbd9680cab37f3db5d7
Reviewed-by: Kentaro Hara <>
Commit-Queue: Gyuyoung Kim <>
Cr-Commit-Position: refs/heads/master@{#641156}
9 files changed