Enable support for notifications layout tests in test shell....

webkit/tools/test_shell/test_shell.h

Index: webkit/tools/test_shell/test_shell.h
===================================================================
--- webkit/tools/test_shell/test_shell.h	(revision 44496)
+++ webkit/tools/test_shell/test_shell.h	(working copy)
@@ -54,6 +54,7 @@
 class GURL;
 class TestNavigationEntry;
 class TestNavigationController;
+class TestNotificationPresenter;
 class TestShellDevToolsAgent;
 class TestShellDevToolsClient;
 class TestWebViewDelegate;
@@ -159,6 +160,9 @@
     EventSendingController* event_sending_controller() {
       return event_sending_controller_.get();
     }
+    TestNotificationPresenter* notification_presenter() {
+      return notification_presenter_.get();
+    }
 
     // Resets the LayoutTestController and EventSendingController.  Should be
     // called before loading a page, since some end-editing event notifications
@@ -388,6 +392,7 @@
     scoped_ptr<PlainTextController> plain_text_controller_;
     scoped_ptr<TextInputController> text_input_controller_;
     scoped_ptr<TestNavigationController> navigation_controller_;
+    scoped_ptr<TestNotificationPresenter> notification_presenter_;
 
     scoped_ptr<TestWebViewDelegate> delegate_;
     scoped_ptr<TestWebViewDelegate> popup_delegate_;
@@ -427,4 +432,3 @@
 };
 
 #endif  // WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_H_
-