Modifying the BackgroundModeManager to handle multiple profiles.

chrome/browser/background_application_list_model.h

Index: chrome/browser/background_application_list_model.h
===================================================================
--- chrome/browser/background_application_list_model.h	(revision 85937)
+++ chrome/browser/background_application_list_model.h	(working copy)
@@ -32,11 +32,12 @@
    public:
     // Invoked when data that the model associates with the extension, such as
     // the Icon, has changed.
-    virtual void OnApplicationDataChanged(const Extension* extension);
+    virtual void OnApplicationDataChanged(const Extension* extension,
+                                          Profile* profile);
 
     // Invoked when the model detects a previously unknown extension and/or when
     // it no longer detects a previously known extension.
-    virtual void OnApplicationListChanged();
+    virtual void OnApplicationListChanged(Profile* profile);
 
    protected:
     virtual ~Observer();
@@ -68,6 +69,9 @@
   // Returns true if the passed extension is a background app.
   static bool IsBackgroundApp(const Extension& extension);
 
+  // Returns whether any of the extensions are background apps.
+  bool HasBackgroundApp();
+
   // Dissociate observer from this model.
   void RemoveObserver(Observer* observer);
 
@@ -110,11 +114,11 @@
 
   // Notifies observers that some of the data associated with this background
   // application, e. g. the Icon, has changed.
-  void OnApplicationDataChanged(const Extension* extension);
+  void OnApplicationDataChanged(const Extension* extension, Profile* profile);
 
   // Notifies observers that at least one background application has been added
   // or removed.
-  void OnApplicationListChanged();
+  void OnApplicationListChanged(Profile* profile);
 
   // Invoked by Observe for EXTENSION_LOADED notifications.
   void OnExtensionLoaded(Extension* extension);