diff --git a/src/privet/device_delegate.h b/src/privet/device_delegate.h
index 3f13b22..1affa1b 100644
--- a/src/privet/device_delegate.h
+++ b/src/privet/device_delegate.h
@@ -8,9 +8,16 @@
 #include <memory>
 #include <utility>
 
+#include <base/callback.h>
+#include <base/location.h>
 #include <base/time/time.h>
 
 namespace weave {
+
+namespace provider {
+class TaskRunner;
+}
+
 namespace privet {
 
 // Interface to provide access to general information about device.
@@ -21,25 +28,31 @@
 
   // Returns HTTP ports for Privet. The first one is the primary port,
   // the second is the port for a pooling updates requests. The second value
-  // could be 0. In this case the first port would be use for regular and for
+  // could be 0. In this case the first port would be used for regular and for
   // updates requests.
   virtual std::pair<uint16_t, uint16_t> GetHttpEnpoint() const = 0;
 
   // The same |GetHttpEnpoint| but for HTTPS.
   virtual std::pair<uint16_t, uint16_t> GetHttpsEnpoint() const = 0;
 
-  // Returns device update.
+  // Returns device uptime.
   virtual base::TimeDelta GetUptime() const = 0;
 
-  // Updates the HTTP port value.
-  virtual void SetHttpPort(uint16_t port) = 0;
+  // Returns the max request timeout of http server. Returns TimeDelta::Max() if
+  // no timeout is set.
+  virtual base::TimeDelta GetHttpRequestTimeout() const = 0;
 
-  // Updates the HTTPS port value.
-  virtual void SetHttpsPort(uint16_t port) = 0;
+  // Schedules a background task on the embedded TaskRunner.
+  virtual void PostDelayedTask(const tracked_objects::Location& from_here,
+                               const base::Closure& task,
+                               base::TimeDelta delay) = 0;
 
   // Create default instance.
-  static std::unique_ptr<DeviceDelegate> CreateDefault(uint16_t http_port,
-                                                       uint16_t https_port);
+  static std::unique_ptr<DeviceDelegate> CreateDefault(
+      provider::TaskRunner* task_runner,
+      uint16_t http_port,
+      uint16_t https_port,
+      base::TimeDelta http_request_timeout);
 };
 
 }  // namespace privet