WVDrmPlugin changes to query device CSR payload for prov 4

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
Merged from https://widevine-internal-review.googlesource.com/178891

Merged from https://widevine-internal-review.googlesource.com/179731

Change-Id: I65d89ed998dd292fc656af2f91f4472c1b5ec33c

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);