Add device ID to Widevine license request

Also added other Client identification fields specified in license exchange
protocol, Appendix C

https://docs.google.com/a/google.com/document/d/1cng6cDnchbDQDymLEd5MxMc_laS3EDv6IsoW3IzpgwQ/edit#heading=h.pmkiti873xeg

They are company, model, architecture, device and product name.

bug: 8292249
Change-Id: I4d5fa93a0c85c7abb025c66d48e4aafbfe90efd8

libwvdrmengine/cdm/src/properties.cpp

@@ -0,0 +1,42 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+
+#include <string>
+
+#include "cutils/properties.h"
+#include "properties.h"
+
+namespace {
+  bool GetAndroidProperty(const char* key, std::string& value) {
+    char val[PROPERTY_VALUE_MAX];
+
+    if (property_get(key, val, "Unknown") <= 0)
+      return false;
+
+    value = val;
+    return true;
+  }
+}
+
+namespace wvcdm {
+
+bool Properties::GetModelName(std::string& model_name) {
+  return GetAndroidProperty("ro.product.model", model_name);
+}
+
+bool Properties::GetArchitectureName(std::string& arch_name) {
+  return GetAndroidProperty("ro.product.cpu.abi", arch_name);
+}
+
+bool Properties::GetDeviceName(std::string& device_name) {
+  return GetAndroidProperty("ro.product.device", device_name);
+}
+
+bool Properties::GetProductName(std::string& product_name) {
+  return GetAndroidProperty("ro.product.name", product_name);
+}
+
+bool Properties::GetBuildInfo(std::string& build_info) {
+  return GetAndroidProperty("ro.build.fingerprint", build_info);
+}
+
+}  // namespace wvcdm