bug: 8621460 Merge of https://widevine-internal-review.googlesource.com/#/c/4955/ from Widevine CDM repository. Change-Id: I30cf4314283db51c8e706c026501784259c87c13
Builds libwvmdrmengine.so, which is loaded by the new MediaDrm APIs to support playback of Widevine/CENC protected content. Change-Id: I6f57dd37083dfd96c402cb9dd137c7d74edc8f1c