ConfigurationPolicyPrefStore refactoring to surface error messages.

chrome/browser/policy/browser_policy_connector.h

Index: chrome/browser/policy/browser_policy_connector.h
diff --git a/chrome/browser/policy/browser_policy_connector.h b/chrome/browser/policy/browser_policy_connector.h
index 1325493fcf0c22d2561d6d446bc8bdf2e982cf3e..d7f1606d4b456cb0d9418f0a38cf0d7e8bbfd291 100644
--- a/chrome/browser/policy/browser_policy_connector.h
+++ b/chrome/browser/policy/browser_policy_connector.h
@@ -13,6 +13,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/task.h"
 #include "chrome/browser/policy/cloud_policy_data_store.h"
+#include "chrome/browser/policy/configuration_policy_handler_list.h"
 #include "chrome/browser/policy/enterprise_install_attributes.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
@@ -111,6 +112,8 @@ class BrowserPolicyConnector : public NotificationObserver {
   const CloudPolicyDataStore* GetDeviceCloudPolicyDataStore() const;
   const CloudPolicyDataStore* GetUserCloudPolicyDataStore() const;
 
+  const HandlerList* GetConfigurationPolicyHandlerList() const;
+
  private:
   friend class ::TestingBrowserProcess;
 
@@ -171,6 +174,10 @@ class BrowserPolicyConnector : public NotificationObserver {
   // policy authentication tokens.
   TokenService* token_service_;
 
+  // List of all available handlers derived from the
+  // ConfigurationPolicyHandlerInterface.
+  HandlerList policy_handlers_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserPolicyConnector);
 };