The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/db922919b12172876644b800ae0d6d1a0c0d2d23

commit db922919b12172876644b800ae0d6d1a0c0d2d23
Author: takumif <takumif@chromium.org>
Date: Wed Dec 14 00:31:02 2016

Remove duplicated code in PresentationServiceDelegateImplTest

This CL takes media sources, mock listeners, and render frame IDs that were
being declared repeatedly in individual test cases, and makes them properties of
the main PresentationServiceDelegateImplTest class.

BUG= 673437 

Review-Url: https://codereview.chromium.org/2569843002
Cr-Commit-Position: refs/heads/master@{#438360}

[modify] https://crrev.com/db922919b12172876644b800ae0d6d1a0c0d2d23/chrome/browser/media/router/presentation_service_delegate_impl_unittest.cc