Revert 164806 - [cros] Prevent extensions from opening dialogs on Login screen.

chrome/browser/extensions/extension_host.cc

Index: chrome/browser/extensions/extension_host.cc
===================================================================
--- chrome/browser/extensions/extension_host.cc	(revision 166869)
+++ chrome/browser/extensions/extension_host.cc	(working copy)
@@ -55,10 +55,6 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
-#if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/login/user_manager.h"
-#endif
-
 using WebKit::WebDragOperation;
 using WebKit::WebDragOperationsMask;
 using content::NativeWebKeyboardEvent;
@@ -414,14 +410,6 @@
   }
 }
 
-#if defined(OS_CHROMEOS)
-bool ExtensionHost::ShouldSuppressDialogs() {
-  // Prevent extensions from creating dialogs while user session hasn't
-  // started yet.
-  return !chromeos::UserManager::Get()->IsSessionStarted();
-}
-#endif
-
 void ExtensionHost::OnStartDownload(
     content::WebContents* source, content::DownloadItem* download) {
   // If |source| is in the context of a Browser, show the DownloadShelf on that