GitLab

Previously media/mojo/sevices:lib was done as a source_set due to issue
670094. Now that that issue is fixed, the intermediate "lib" target is
no longer needed.

Removing the suppression of duplicate symbols revealed that some of the
CdmPromiseTemplate methods end up in multiple modules when doing a
component build. So fix CdmPromiseTemplate<>::GetResolveParameterType()
implementation to avoid this.

This also enables //media/mojo/services/media_service_unittests on
Windows (which was disabled due to linking issues that are now fixed).

BUG=676418,676055,656706
TEST=media_mojo tests compile and run

Review-Url: https://codereview.chromium.org/2737513004
Cr-Commit-Position: refs/heads/master@{#486472}