Migration from jb-mr2 to master for Widevine CDM

Android development of the widevine CDM has been done
on the jb-mr2 branch of the cdm code base.  This CL
contains a merge of that jb-mr2 work to CDM master, and
also reflects the evolution of the common Modular DRM
code base since jb-mr2 branched.

Change-Id: I1d7e1a12d092c00044a4298261146cb97808d4ef

libwvdrmengine/cdm/src/properties_android.cpp

@@ -0,0 +1,95 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+
+#include "properties.h"
+
+#include <sstream>
+#include <string>
+#include <unistd.h>
+
+#include "cutils/properties.h"
+#include "log.h"
+
+namespace {
+
+bool GetAndroidProperty(const char* key, std::string* value) {
+  char val[PROPERTY_VALUE_MAX];
+  if (!key) {
+    LOGW("GetAndroidProperty: Invalid property key parameter");
+    return false;
+  }
+
+  if (!value) {
+    LOGW("GetAndroidProperty: Invalid property value parameter");
+    return false;
+  }
+
+  if (property_get(key, val, "Unknown") <= 0) return false;
+
+  *value = val;
+  return true;
+}
+
+}  // namespace
+
+namespace wvcdm {
+
+bool Properties::GetCompanyName(std::string* company_name) {
+  if (!company_name) {
+    LOGW("Properties::GetCompanyName: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.product.manufacturer", company_name);
+}
+
+bool Properties::GetModelName(std::string* model_name) {
+  if (!model_name) {
+    LOGW("Properties::GetModelName: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.product.model", model_name);
+}
+
+bool Properties::GetArchitectureName(std::string* arch_name) {
+  if (!arch_name) {
+    LOGW("Properties::GetArchitectureName: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.product.cpu.abi", arch_name);
+}
+
+bool Properties::GetDeviceName(std::string* device_name) {
+  if (!device_name) {
+    LOGW("Properties::GetDeviceName: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.product.device", device_name);
+}
+
+bool Properties::GetProductName(std::string* product_name) {
+  if (!product_name) {
+    LOGW("Properties::GetProductName: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.product.name", product_name);
+}
+
+bool Properties::GetBuildInfo(std::string* build_info) {
+  if (!build_info) {
+    LOGW("Properties::GetBuildInfo: Invalid parameter");
+    return false;
+  }
+  return GetAndroidProperty("ro.build.fingerprint", build_info);
+}
+
+bool Properties::GetDeviceFilesBasePath(std::string* base_path) {
+  if (!base_path) {
+    LOGW("Properties::GetDeviceFilesBasePath: Invalid parameter");
+    return false;
+  }
+  std::stringstream ss;
+  ss << "/data/mediadrm/IDM" << getuid() << "/";
+  *base_path = ss.str();
+  return true;
+}
+
+}  // namespace wvcdm