Merging CL:
* http://go/wvgerrit/108203
* http://go/wvgerrit/103904 (changes to L3 source files excluded)
Also added ODK dependency which is required by L3 v16.
Do not replace constant sizeof() with a hard-coded value in L3 library because it is target-specific.
Test: Unit tests on gLinux
jenkins/linux_unit_tests
jenkins/ce_cdm_tests
Test: Unit tests on Pixel 4(flame-userdebug, rvc-qpr-dev)
vendor/widevine/libwvdrmengine/build_and_run_all_unit_tests.sh
Test: Manual ExoPlayer L1/L3 playback tests (flame-userdebug)
WV: Secure HD/SD (cenc,MP4,H264)
WV: Secure HD/SD (cbc1,MP4,H264)
WV: Secure HD/SD (cbcs,MP4,H264)
Test: Widevine GTS tests(bramble-userdebug, master)
http://ab/I23800006571451275
Bug: 136317881
Bug: 139814713
Bug: 173331251
Change-Id: I1656e83a74a0eaf650f55f5e2388819bf5020c0d
0f32446ee7