Implement Chrome OS device enrollment on the new cloud policy stack.

chrome/browser/policy/device_cloud_policy_manager_chromeos.h

Index: chrome/browser/policy/device_cloud_policy_manager_chromeos.h
diff --git a/chrome/browser/policy/device_cloud_policy_manager_chromeos.h b/chrome/browser/policy/device_cloud_policy_manager_chromeos.h
index 0ea34019b7bee5fcf2b97c17d7539e44eeb974e6..ea50a31396bdf0a2a622658877468ecbfa87b198 100644
--- a/chrome/browser/policy/device_cloud_policy_manager_chromeos.h
+++ b/chrome/browser/policy/device_cloud_policy_manager_chromeos.h
@@ -23,11 +23,19 @@ namespace policy {
 class CloudPolicyClient;
 class DeviceCloudPolicyStoreChromeOS;
 class DeviceManagementService;
+class EnrollmentHandlerChromeOS;
 class EnterpriseInstallAttributes;
 
-// CloudPolicyManager specialization for device policy on Chrome OS.
+// CloudPolicyManager specialization for device policy on Chrome OS. The most
+// significant addition is support for device enrollment.
 class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
  public:
+  typedef base::Callback<void(EnrollmentStatus,
+                              DeviceManagementStatus,
+                              CloudPolicyValidatorBase::Status,
+                              CloudPolicyStore::Status)>
+      EnrollmentCallback;
+
   DeviceCloudPolicyManagerChromeOS(
       scoped_ptr<DeviceCloudPolicyStoreChromeOS> store,
       EnterpriseInstallAttributes* install_attributes);
@@ -40,6 +48,14 @@ class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
   // Shuts down the cloud connection.
   void Shutdown();
 
+  // Starts enrollment or re-enrollment. Once the enrollment process completes,
+  // |callback| is invoked, indicating success.

[Joao da Silva, 2012/09/07 14:01:42]

"indicating success" is a bit misleading, since this is also called on errors.
Maybe "|callback| is invoked with the result of the enrollment request"

[Mattias Nissler (ping if slow), 2012/10/23 15:30:41]

Done.

+  void StartEnrollment(const std::string& auth_token,
+                       const EnrollmentCallback& callback);
+
+  // Cancels a pending enrollment operation, if any.
+  void CancelEnrollment();
+
   // CloudPolicyStore::Observer:
   virtual void OnStoreLoaded(CloudPolicyStore* store) OVERRIDE;
 
@@ -56,6 +72,13 @@ class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
   // Starts regular operation if |store_| has policy and is initialized.
   void StartIfInitialized();
 
+  // Handles completion signaled by |enrollment_handler_|.
+  void EnrollmentCompleted(const EnrollmentCallback& callback,
+                           EnrollmentStatus status,
+                           DeviceManagementStatus dm_status,
+                           CloudPolicyValidatorBase::Status validator_status,
+                           CloudPolicyStore::Status store_status);
+
   // Points to the same object as the base CloudPolicyManager::store(), but with
   // actual device policy specific type.
   DeviceCloudPolicyStoreChromeOS* device_store_;
@@ -66,6 +89,9 @@ class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
   // PrefService instance to read the policy refresh rate from.
   PrefService* local_state_;
 
+  // Non-null if there is an enrollment operation pending.
+  scoped_ptr<EnrollmentHandlerChromeOS> enrollment_handler_;
+
   DISALLOW_COPY_AND_ASSIGN(DeviceCloudPolicyManagerChromeOS);
 };