Rename "Is*Expired" to "Has*Expired" in PolicyEngine

[ Merge of http://go/wvgerrit/22516 ]

b/34211676

Test: All unittests other than some oemcrypto, request_license_test
passed. Those tests failed with or without this CL.

Change-Id: Ie973f468f9efd05bdafcf90164dae185a6ce11dc

libwvdrmengine/cdm/core/src/cdm_session.cpp

@@ -412,7 +412,7 @@ CdmResponseType CdmSession::Decrypt(const CdmDecryptionParameters& params) {
   } else {
     Clock clock;
     int64_t current_time = clock.GetCurrentTime();
-    if (policy_engine_->IsLicenseOrPlaybackDurationExpired(current_time)) {
+    if (policy_engine_->HasLicenseOrPlaybackDurationExpired(current_time)) {
       return NEED_KEY;
     }
   }