Adds a first-run balloon to the Windows notification center.

chrome/browser/notifications/message_center_notification_manager.h

Index: chrome/browser/notifications/message_center_notification_manager.h
diff --git a/chrome/browser/notifications/message_center_notification_manager.h b/chrome/browser/notifications/message_center_notification_manager.h
index ae5fc9ad0e1c4e098c128d839817c872c93375c7..b21eba4511fb96ba550bceabfc74ed8dce6495a0 100644
--- a/chrome/browser/notifications/message_center_notification_manager.h
+++ b/chrome/browser/notifications/message_center_notification_manager.h
@@ -9,6 +9,10 @@
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/prefs/pref_member.h"
+#include "base/time.h"
+#include "base/timer.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/notifications/notification_ui_manager_impl.h"
@@ -18,6 +22,7 @@
 
 class MessageCenterSettingsController;
 class Notification;
+class PrefService;
 class Profile;
 
 // This class extends NotificationUIManagerImpl and delegates actual display
@@ -28,9 +33,17 @@ class MessageCenterNotificationManager
       public message_center::MessageCenterObserver {
  public:
   explicit MessageCenterNotificationManager(
-      message_center::MessageCenter* message_center);
+      message_center::MessageCenter* message_center,
+      PrefService* local_state);
   virtual ~MessageCenterNotificationManager();
 
+#if defined(OS_WIN)
+  // Called when the pref changes for the first run balloon. The first run
+  // balloon is only displayed on Windows, since the visibility of the tray
+  // icon is limited.
+  void DisplayFirstRunBalloon();
+#endif
+
   // NotificationUIManager
   virtual bool DoesIdExist(const std::string& notification_id) OVERRIDE;
   virtual bool CancelById(const std::string& notification_id) OVERRIDE;
@@ -59,6 +72,13 @@ class MessageCenterNotificationManager
   virtual void OnNotificationRemoved(const std::string& notification_id,
                                      bool by_user) OVERRIDE;
   virtual void OnNotificationCenterClosed() OVERRIDE;
+  virtual void OnNotificationUpdated(const std::string& notification_id)
+      OVERRIDE;
+
+  // Takes ownership of |delegate|.
+  void SetMessageCenterTrayDelegateForTest(
+      message_center::MessageCenterTrayDelegate* delegate);
+  void SetFirstRunTimeoutForTest(base::TimeDelta timeout);
 
  private:
   class ImageDownloadsObserver {
@@ -171,6 +191,28 @@ class MessageCenterNotificationManager
   // notification is found.
   ProfileNotification* FindProfileNotification(const std::string& id) const;
 
+#if defined(OS_WIN)
+  // This function is run on update to ensure that the notification balloon is
+  // shown only when there are no popups present.
+  void CheckFirstRunTimer();
+#endif
+
+  // |first_run_pref_| is used to keep track of whether we've ever shown the
+  // first run balloon before, even across restarts.
+  BooleanPrefMember first_run_pref_;
+
+  // The timer after which we will show the first run balloon.  This timer is
+  // restarted every time the message center is closed and every time the last
+  // popup disappears from the screen.
+  base::OneShotTimer<MessageCenterNotificationManager> first_run_balloon_timer_;

[Andrew T Wilson (Slow), 2013/06/20 21:08:59]

So all this stuff is windows-only -- can we #if this stuff out also?

[dewittj, 2013/06/21 21:56:51]

Done.

+
+  // The first-run balloon will be shown |first_run_idle_timeout_| after all
+  // popups go away and the user has notifications in the message center.
+  base::TimeDelta first_run_idle_timeout_;
+
+  // Provides weak pointers for the purpose of the first run timer.
+  base::WeakPtrFactory<MessageCenterNotificationManager> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(MessageCenterNotificationManager);
 };