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_license_request_fuzz.cc

@@ -0,0 +1,28 @@
+// 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();
+  // Reject the input if it is less than fuzz data structure size.
+  if (size < sizeof(OEMCrypto_Request_Fuzz)) {
+    return 0;
+  }
+  // Input for license request API will be modified by OEMCrypto, hence it
+  // cannot be a const. Fuzzer complains if const identifier is removed of data,
+  // hence copying data into a non const pointer.
+  uint8_t* input = new uint8_t[size];
+  memcpy(input, data, size);
+  OEMCryptoLicenseAPIFuzz license_api_fuzz;
+  license_api_fuzz.license_messages().InjectFuzzedRequestData(input, size);
+  delete[] input;
+  return 0;
+}
+}  // namespace wvoec