Merge recent doc changes for OEMCrypto

This is a cherry pick of recent changes to OEMCrypto and ODK. Most of
these are part of the document migration to doxygen.

See http://go/wvgerrit/106005 and its parents for code reviews.

Bug: 144715340
Bug: 148232693
Bug: 167580674
Change-Id: I658f99c8117b974faed97322d61fac0f382283af

libwvdrmengine/oemcrypto/test/fuzz_tests/oemcrypto_load_renewal_fuzz.cc

@@ -0,0 +1,42 @@
+// Copyright 2020 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
+
+#include "oemcrypto_fuzz_helper.h"
+#include "oemcrypto_fuzz_structs.h"
+
+namespace wvoec {
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  // Redirect printf and log statements from oemcrypto functions to a file to
+  // reduce noise
+  RedirectStdoutToFile();
+  if (size < sizeof(OEMCrypto_Renewal_Response_Fuzz)) {
+    return 0;
+  }
+  // Copy input data to OEMCrypto_Renewal_Response_Fuzz and rest of message
+  // into encrypted license_renewal_response.
+  OEMCrypto_Renewal_Response_Fuzz fuzzed_data;
+  memcpy(&fuzzed_data, data, sizeof(fuzzed_data));
+  const uint8_t* renewal_response =
+      data + sizeof(OEMCrypto_Renewal_Response_Fuzz);
+  const size_t renewal_response_size =
+      size - sizeof(OEMCrypto_Renewal_Response_Fuzz);
+
+  OEMCryptoRenewalAPIFuzz renewal_response_fuzz;
+  renewal_response_fuzz.license_messages().SignAndVerifyRequest();
+  renewal_response_fuzz.license_messages().CreateDefaultResponse();
+  // Inject timer limits from fuzzed input to timer_limits field from
+  // core license response.
+  renewal_response_fuzz.license_messages().InjectFuzzedTimerLimits(fuzzed_data);
+  renewal_response_fuzz.license_messages().EncryptAndSignResponse();
+  renewal_response_fuzz.license_messages().LoadResponse();
+
+  // Call renewal response API using fuzzed data.
+  renewal_response_fuzz.renewal_messages().SignAndVerifyRequest();
+  renewal_response_fuzz.renewal_messages().InjectFuzzedResponseData(
+      fuzzed_data, renewal_response, renewal_response_size);
+  renewal_response_fuzz.renewal_messages().LoadResponse();
+  return 0;
+}
+}  // namespace wvoec