Rework the way the FindBrowserWithProfile/Type methods work....

chrome/browser/browser_list.h

Index: chrome/browser/browser_list.h
===================================================================
--- chrome/browser/browser_list.h	(revision 30661)
+++ chrome/browser/browser_list.h	(working copy)
@@ -58,14 +58,14 @@
   // open browser owned by |profile| is returned. If none exist, returns NULL.
   static Browser* GetLastActiveWithProfile(Profile *profile);
 
-  // Find an existing browser window with the provided type. If the last active
-  // has the right type, it is returned. Otherwise, the next available browser
-  // is returned. Returns NULL if no such browser currently exists.
+  // Find an existing browser window with the provided type. Searches in the
+  // order of last activation. Only browsers that have been active can be
+  // 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.
+  // Find an existing browser window with the provided profile. Searches in the
+  // order of last activation. Only browsers that have been active can be
+  // 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