Add OVERRIDE to chrome/browser/.

chrome/browser/policy/device_management_backend_impl.h

Index: chrome/browser/policy/device_management_backend_impl.h
diff --git a/chrome/browser/policy/device_management_backend_impl.h b/chrome/browser/policy/device_management_backend_impl.h
index 4354c9823db4a37389250966c46fff45b1873131..ff4f3ff2ddfa20bc5fd46a861c4c7dc2485627b1 100644
--- a/chrome/browser/policy/device_management_backend_impl.h
+++ b/chrome/browser/policy/device_management_backend_impl.h
@@ -64,18 +64,18 @@ class DeviceManagementBackendImpl : public DeviceManagementBackend {
       const std::string& oauth_token,
       const std::string& device_id,
       const em::DeviceRegisterRequest& request,
-      DeviceRegisterResponseDelegate* response_delegate);
+      DeviceRegisterResponseDelegate* response_delegate) OVERRIDE;
   virtual void ProcessUnregisterRequest(
       const std::string& device_management_token,
       const std::string& device_id,
       const em::DeviceUnregisterRequest& request,
-      DeviceUnregisterResponseDelegate* response_delegate);
+      DeviceUnregisterResponseDelegate* response_delegate) OVERRIDE;
   virtual void ProcessPolicyRequest(
       const std::string& device_management_token,
       const std::string& device_id,
       CloudPolicyDataStore::UserAffiliation affiliation,
       const em::DevicePolicyRequest& request,
-      DevicePolicyResponseDelegate* response_delegate);
+      DevicePolicyResponseDelegate* response_delegate) OVERRIDE;
 
   // Converts a user affiliation to the appropriate query parameter value.
   static const char* UserAffiliationToString(