Refactor UpgradeDetector.

chrome/browser/upgrade_detector.h

Index: chrome/browser/upgrade_detector.h
diff --git a/chrome/browser/upgrade_detector.h b/chrome/browser/upgrade_detector.h
index 00227d5d7aee8732300895ce754b57af32e004a3..31ac7090336a55fa2cc7d0ef33099d494bd77933 100644
--- a/chrome/browser/upgrade_detector.h
+++ b/chrome/browser/upgrade_detector.h
@@ -9,7 +9,6 @@
 #include "base/timer.h"
 #include "ui/gfx/image.h"
 
-template <typename T> struct DefaultSingletonTraits;
 class PrefService;
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -39,10 +38,10 @@ class UpgradeDetector {
     UPGRADE_ICON_TYPE_MENU_ICON,  // For showing in the wrench menu.
   };
 
-  // Returns the singleton instance.
+  // Returns the singleton implementation instance.
   static UpgradeDetector* GetInstance();
 
-  ~UpgradeDetector();
+  virtual ~UpgradeDetector();
 
   static void RegisterPrefs(PrefService* prefs);
 
@@ -55,41 +54,28 @@ class UpgradeDetector {
   // within the wrench menu.
   int GetIconResourceID(UpgradeNotificationIconType type);
 
- private:
-  friend struct DefaultSingletonTraits<UpgradeDetector>;
-
+ protected:
   UpgradeDetector();
 
-  // Launches a task on the file thread to check if we have the latest version.
-  void CheckForUpgrade();
-
-  // Sends out a notification and starts a one shot timer to wait until
-  // notifying the user.
-  void UpgradeDetected();
+  // Sends out UPGRADE_DETECTED notification and record upgrade_detected_time_.
+  void NotifyUpgradeDetected();
 
-  // The function that sends out a notification (after a certain time has
-  // elapsed) that lets the rest of the UI know we should start notifying the
-  // user that a new version is available.
-  void NotifyOnUpgrade();
+  // Sends out UPGRADE_RECOMMENDED notification and set notify_upgrade_.
+  void NotifyUpgradeRecommended();
 
-  // We periodically check to see if Chrome has been upgraded.
-  base::RepeatingTimer<UpgradeDetector> detect_upgrade_timer_;
+  // Accessors.
+  const base::Time& upgrade_detected_time() const {
+    return upgrade_detected_time_;
+  }
 
-  // After we detect an upgrade we start a recurring timer to see if enough time
-  // has passed and we should start notifying the user.
-  base::RepeatingTimer<UpgradeDetector> upgrade_notification_timer_;
-
-  // We use this factory to create callback tasks for UpgradeDetected. We pass
-  // the task to the actual upgrade detection code, which is in
-  // DetectUpgradeTask.
-  ScopedRunnableMethodFactory<UpgradeDetector> method_factory_;
+  void set_upgrade_notification_stage(UpgradeNotificationAnnoyanceLevel stage) {
+    upgrade_notification_stage_ = stage;
+  }
 
+ private:
   // When the upgrade was detected.
   base::Time upgrade_detected_time_;
 
-  // True if this build is a dev or canary channel build.
-  bool is_unstable_channel_;
-
   // The stage at which the annoyance level for upgrade notifications is at.
   UpgradeNotificationAnnoyanceLevel upgrade_notification_stage_;