Added estimated time remaining on AU.

chrome/browser/chromeos/login/update_screen.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_SCREEN_H_
 #pragma once
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/time.h"
 #include "base/timer.h"
 #include "chrome/browser/chromeos/login/update_screen_actor.h"
 #include "chrome/browser/chromeos/login/wizard_screen.h"
 #include "chromeos/dbus/update_engine_client.h"
 
 namespace chromeos {
 
 class ScreenObserver;
 
 // Controller for the update screen. It does not depend on the specific
@@ skipping 38 matching lines @@
   virtual void ExitUpdate(ExitReason reason);
 
   // UpdateEngineClient::Observer implementation:
   virtual void UpdateStatusChanged(
       const UpdateEngineClient::Status& status) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(UpdateScreenTest, TestBasic);
   FRIEND_TEST_ALL_PREFIXES(UpdateScreenTest, TestUpdateAvailable);
 
+  // Updates downloading stats (remaining time and downloading
+  // progress) on the AU screen.
+  void UpdateDownloadingStats(const UpdateEngineClient::Status& status);
+
   // Returns true if there is critical system update that requires installation
   // and immediate reboot.
   bool HasCriticalUpdate();
 
   // Timer notification handlers.
   void OnWaitForRebootTimeElapsed();
 
   // Checks that screen is shown, shows if not.
   void MakeSureScreenIsShown();
 
@@ skipping 18 matching lines @@
   // Note, this is false by default.
   bool is_ignore_update_deadlines_;
   // Whether the update screen is shown.
   bool is_shown_;
   // Ignore fist IDLE status that is sent before update screen initiated check.
   bool ignore_idle_status_;
 
   // Keeps actor which is delegated with all showing operations.
   UpdateScreenActor* actor_;
 
+  // Time of the first notification from the downloading stage.
+  base::Time download_start_time_;
+  double download_start_progress_;
+
+  // Time of the last notification from the downloading stage.
+  base::Time download_last_time_;
+  double download_last_progress_;
+
+  bool is_download_average_speed_computed_;
+  double download_average_speed_;
+
   DISALLOW_COPY_AND_ASSIGN(UpdateScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UPDATE_SCREEN_H_