Refactor ExtensionView to support a UI-less extension instance....

chrome/browser/browser_list.h

Index: chrome/browser/browser_list.h
===================================================================
--- chrome/browser/browser_list.h	(revision 14851)
+++ chrome/browser/browser_list.h	(working copy)
@@ -59,6 +59,11 @@
   // is returned. Returns NULL if no such browser currently exists.
   static Browser* FindBrowserWithType(Profile* p, Browser::Type t);
 
+  // Find an existing browser window with the provided profile. If the last
+  // active has the right profile, it is returned.  Returns NULL if no such
+  // browser currently exists.
+  static Browser* FindBrowserWithProfile(Profile* p);
+
   // Find an existing browser with the provided ID. Returns NULL if no such
   // browser currently exists.
   static Browser* FindBrowserWithID(SessionID::id_type desired_id);