Pull shell window stuff out of ExtensionHost and put in ShellWindow

chrome/common/chrome_notification_types.h

Index: chrome/common/chrome_notification_types.h
diff --git a/chrome/common/chrome_notification_types.h b/chrome/common/chrome_notification_types.h
index c8411e48c73c5d40cbae762b4ceb34064c83e608..b9d68bd296903043949c62c696fd3b4f4f041ccb 100644
--- a/chrome/common/chrome_notification_types.h
+++ b/chrome/common/chrome_notification_types.h
@@ -512,6 +512,14 @@ enum NotificationType {
   // ExtensionAction* that changed. The details are a WebContents*.
   NOTIFICATION_EXTENSION_PAGE_ACTION_VISIBILITY_CHANGED,
 
+  // A new extension RenderViewHost has been registered. The details are
+  // the RenderViewHost*.
+  NOTIFICATION_EXTENSION_VIEW_REGISTERED,
+
+  // An extension RenderViewHost has been unregistered. The details are
+  // the RenderViewHost*.
+  NOTIFICATION_EXTENSION_VIEW_UNREGISTERED,
+
   // Sent by an extension to notify the browser about the results of a unit
   // test.
   NOTIFICATION_EXTENSION_TEST_PASSED,