Swap processes on reload if a hosted app has been installed/uninstalled.

content/browser/site_instance.h

Index: content/browser/site_instance.h
diff --git a/content/browser/site_instance.h b/content/browser/site_instance.h
index 3b6346d5ea367c7dbbab2dff7995d2e5c201bf59..ebe1b3e4afb66cebf06467ecad0ae46eb89cfa75 100644
--- a/content/browser/site_instance.h
+++ b/content/browser/site_instance.h
@@ -105,6 +105,11 @@ class SiteInstance : public base::RefCounted<SiteInstance>,
   // Darin suggests.
   SiteInstance* GetRelatedSiteInstance(const GURL& url);
 
+  // Returns whether this SiteInstance has a process that is the wrong type for
+  // the given URL.  If so, the browser should force a process swap when
+  // navigating to the URL.
+  bool HasWrongProcessForURL(const GURL& url) const;
+
   // Factory method to create a new SiteInstance.  This will create a new
   // new BrowsingInstance, so it should only be used when creating a new tab
   // from scratch (or similar circumstances).  Callers should ensure that