Cast Receiver integration test

Merge from Widevine repo of http://go/wvgerrit/169471

Remove the test in android tests and add it to the
core tests.

Bug: 276464340
Test: GTEST_FILTER="CorePIGTest.CastReceiverProvisioning*" jenkins/run_fake_l1_tests
Change-Id: Icd280b532ddae274f66b2fab3e65520e96adb7cb

libwvdrmengine/cdm/core/test/provisioning_holder.h

@@ -20,6 +20,8 @@ class ProvisioningHolder {
         provisioning_server_url_(provisioning_server_url),
         provisioning_service_certificate_(provisioning_service_certificate) {}
   void Provision(CdmCertificateType cert_type, bool binary_provisioning);
+  std::string certificate() const { return certificate_; }
+  std::string wrapped_key() const { return wrapped_key_; }
 
  protected:
   TestCdmEngine* cdm_engine_;