The request ID was set to a fixed value, which caused license requests
to be rejected by the YT server with TOO_MANY_STREAMS_PER_VIDEO
The request ID is now a combination of a randomly generated value and
a rolling index. This is based off a fix by gmorgan@ on the eureka
branch #98fa6e5e.
Merge of https://widevine-internal-review.googlesource.com/#/c/8496/
from the widevine cdm repo.
b/12018697
Change-Id: I6c05fea885d46aea53a07235c3e5ac65a6971eaf
1b22c80568