[GCM] Make sure GCM checkout logic is invoked when the profile is signed out

chrome/browser/services/gcm/gcm_profile_service.h

Index: chrome/browser/services/gcm/gcm_profile_service.h
diff --git a/chrome/browser/services/gcm/gcm_profile_service.h b/chrome/browser/services/gcm/gcm_profile_service.h
index 633a6e8c7356953d3f57ef91c964a75b60e4cec7..f8a0aff37dc87afeebe15a6161802b7a77f2fe77 100644
--- a/chrome/browser/services/gcm/gcm_profile_service.h
+++ b/chrome/browser/services/gcm/gcm_profile_service.h
@@ -117,9 +117,12 @@ class GCMProfileService : public BrowserContextKeyedService,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  // Checks in with GCM by creating and initializing GCMClient when the profile
-  // has been signed in.
-  void CheckIn(const std::string& username);
+  // Returns true if GCM is enabled for the rollout channel.
+  bool IsGCMChannelEnabled() const;
+
+  // Ensures that the GCMClient is initialized and the GCM check-in is done when
+  // the profile was signed in.
+  void EnsureCheckedIn();
 
   // Checks out of GCM when the profile has been signed out. This will erase
   // all the cached and persisted data.
@@ -155,7 +158,7 @@ class GCMProfileService : public BrowserContextKeyedService,
   void MessageSendError(const std::string& app_id,
                         const std::string& message_id,
                         GCMClient::Result result);
-  void FinishInitializationOnUI(bool ready);
+  void FinishInitializationOnUI();
   void GCMClientReady();
 
   // Returns the event router to fire the event for the given app.