Update policy backend and testserver for the newest policy protocol

chrome/browser/policy/cloud_policy_identity_strategy.h

Index: chrome/browser/policy/cloud_policy_identity_strategy.h
diff --git a/chrome/browser/policy/cloud_policy_identity_strategy.h b/chrome/browser/policy/cloud_policy_identity_strategy.h
index 681d80acd21f9884f36bc3e1be3b0c80d20f4310..6864587da00021a94d5d57d46fbb0c60485e8403 100644
--- a/chrome/browser/policy/cloud_policy_identity_strategy.h
+++ b/chrome/browser/policy/cloud_policy_identity_strategy.h
@@ -9,9 +9,12 @@
 #include <string>
 
 #include "base/observer_list.h"
+#include "chrome/browser/policy/proto/device_management_backend.pb.h"
 
 namespace policy {
 
+namespace em = enterprise_management;
+
 // Manages a device management token, i.e. an identifier that represents a
 // registration with the device management service, and the associated
 // credentials. Responsibilities include storing and loading the token from
@@ -49,6 +52,17 @@ class CloudPolicyIdentityStrategy {
   // Returns the device ID for this device.
   virtual std::string GetDeviceID() = 0;
 
+  // Returns physical machine ID for this device.
+  virtual std::string GetMachineID() = 0;
+
+  // Returns the policy type to be used for registering at the device management
+  // server.
+  virtual em::DeviceRegisterRequest_Type GetPolicyRegisterType() = 0;
+
+  // Returns the policy type to be used for requesting policies from the device
+  // management server.
+  virtual std::string GetPolicyType() = 0;
+
   // Retrieves authentication credentials to use when talking to the device
   // management service. Returns true if the data is available and writes the
   // values to the provided pointers.