Cast: Refactor Audio Receiver to Clang format

This cl is pure style-targeted refactoring.
No functional changes were made.

BUG=339176

Review URL: https://codereview.chromium.org/149703002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247908 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247908
Cast: Refactor CongestionControl to Clang format 

This cl is pure style-targeted refactoring. 
No functional changes were made. 

BUG=339176

Review URL: https://codereview.chromium.org/149093008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247909 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247909