Tests: Build and run WebRTC unit tests

[aisouard]

[muellni]

I want to use webrtc/api/test/fakeaudiocapturemodule.h for my build of node-webrtc.
While webrtc/api/BUILD.gn seems to use the rtc_include_tests option for building the webrtc/api/test/* files, it looks like the -DBUILD_TESTS=ON cmake-option doesn't enable it anymore, is that correct?
Do you see any way to fix that?

[aisouard]

The BUILD_TESTS flag wasn't taken into account inside the webrtc-src CMake target.
I have no other choice than building all the test binaries, this will add 933 files to compile and I hope that it won't reopen #32.

Testing under branch build-unit-tests

[aisouard]

Travis takes too much time to compile the library with unit tests.
I'll retry tonight on my own machines then close the issue.

[aisouard]

Merged in branch dev.