Move PROFILE_DESTROYED notification to ProfileDestroyer and observe it in ExtensionProcessManager.

chrome/browser/extensions/extension_process_manager.cc

Index: chrome/browser/extensions/extension_process_manager.cc
diff --git a/chrome/browser/extensions/extension_process_manager.cc b/chrome/browser/extensions/extension_process_manager.cc
index bfb1b4b3bccbe0bde8c7cc1f1dbfcd1a3307b20c..0c50e1c57a7b21c0ffec1395fbef11ebcb9571d1 100644
--- a/chrome/browser/extensions/extension_process_manager.cc
+++ b/chrome/browser/extensions/extension_process_manager.cc
@@ -150,8 +150,8 @@ ExtensionProcessManager::ExtensionProcessManager(Profile* profile)
                  content::Source<Profile>(profile));
   registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_CONNECTED,
                  content::NotificationService::AllSources());
-  registrar_.Add(this, content::NOTIFICATION_APP_TERMINATING,
-                 content::NotificationService::AllSources());
+  registrar_.Add(this, chrome::NOTIFICATION_PROFILE_DESTROYED,
+                 content::Source<Profile>(profile));
   registrar_.Add(this, content::NOTIFICATION_DEVTOOLS_WINDOW_OPENING,
                  content::Source<content::BrowserContext>(profile));
   registrar_.Add(this, content::NOTIFICATION_DEVTOOLS_WINDOW_CLOSING,
@@ -587,7 +587,7 @@ void ExtensionProcessManager::Observe(
       break;
     }
 
-    case content::NOTIFICATION_APP_TERMINATING: {
+    case chrome::NOTIFICATION_PROFILE_DESTROYED: {
       // Close background hosts when the last browser is closed so that they
       // have time to shutdown various objects on different threads. Our
       // destructor is called too late in the shutdown sequence.