Secure stop API related changes

[ Merge of http://go/wvgerrit/44921 ]

* Added the ability to remove a single usage information record.
* Added a method to retrieve all secure stop Ids.

Bug: 69674645
Test: WV unit, integration tests
Change-Id: I04ac8224b4bdda69541e61ff1103af3836138228

libwvdrmengine/cdm/core/include/device_files.h

@@ -105,9 +105,13 @@ class DeviceFiles {
                               const CdmUsageEntry& usage_entry,
                               uint32_t usage_entry_number);
 
-  // Extract KSIDs from usage information on the file system.
-  virtual bool ListUsageRecords(const std::string& app_id,
-                                std::vector<std::string>* ksids);
+  // Retrieve usage identifying information stored on the file system.
+  // The caller needs to specify at least one of |ksids| or
+  // |provider_session_tokens|
+  virtual bool ListUsageIds(
+      const std::string& app_id,
+      std::vector<std::string>* ksids,
+      std::vector<std::string>* provider_session_tokens);
 
   // Get the provider session token for the given key_set_id.
   virtual bool GetProviderSessionToken(const std::string& app_id,