Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/cloud_policy_controller.h

Index: chrome/browser/policy/cloud_policy_controller.h
diff --git a/chrome/browser/policy/cloud_policy_controller.h b/chrome/browser/policy/cloud_policy_controller.h
index 3ce708a1bd9ef786491e62323c2e519cb24a1df9..c4467041450a8a22e3c1690f87ed042cf2e7e446 100644
--- a/chrome/browser/policy/cloud_policy_controller.h
+++ b/chrome/browser/policy/cloud_policy_controller.h
@@ -6,19 +6,18 @@
 #define CHROME_BROWSER_POLICY_CLOUD_POLICY_CONTROLLER_H_
 #pragma once
 
-#include <string>
-
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/policy/cloud_policy_data_store.h"
-#include "chrome/browser/policy/configuration_policy_provider.h"
-#include "chrome/browser/policy/delayed_work_scheduler.h"
-#include "chrome/browser/policy/device_token_fetcher.h"
+#include "chrome/browser/policy/device_management_backend.h"
 
 namespace policy {
 
 class CloudPolicyCacheBase;
-class DeviceManagementBackend;
+class DelayedWorkScheduler;
+class DeviceManagementService;
+class DeviceTokenFetcher;
+class PolicyNotifier;
 
 // Coordinates the actions of DeviceTokenFetcher, CloudPolicyDataStore,
 // DeviceManagementBackend, and CloudPolicyCache: calls their methods and