WVDrmPlugin changes to query device CSR payload for prov 4

[ Merge of https://widevine-internal-review.googlesource.com/c/cdm/+/178891/ ]

Plugin to provide getPropertyByteArray("deviceSignedCsrPayload")
which returns the signed CSR payload for device registration. It
queries both BCC and device info to be set in plugin before calling this
getPropertyByteArray("deviceSignedCsrPayload") method. The returned csr
payload will be used by assemble the device CSR by the caller for device
registration.

Bug: 286556950
Test: build WV DRM plugin
Change-Id: Ie592f53497f6d391ff232fd02bd4e66ca857e0e4

libwvdrmengine/cdm/include/wv_content_decryption_module.h

@@ -11,7 +11,7 @@
 #include <memory>
 #include <mutex>
 
-#include <utils/RefBase.h>
+#include "utils/RefBase.h"
 
 #include "cdm_identifier.h"
 #include "disallow_copy_and_assign.h"
@@ -135,6 +135,11 @@ class WvContentDecryptionModule : public android::RefBase, public TimerHandler {
   virtual CdmResponseType QueryKeyStatus(const CdmSessionId& session_id,
                                          CdmQueryMap* key_info);
 
+  // Query device CSR information for Provisioning 4.0
+  virtual CdmResponseType QueryDeviceSignedCsrPayload(
+      const std::string& challenge, const std::string& device_info,
+      std::string* value);
+
   // Query OEMCrypto session ID
   virtual CdmResponseType QueryOemCryptoSessionId(
       const CdmSessionId& session_id, CdmQueryMap* response);