Keep track in the browser of which frames have onunload and onbeforeunload handlers.

content/test/test_render_frame_host.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_TEST_TEST_RENDER_FRAME_HOST_H_
 #define CONTENT_TEST_TEST_RENDER_FRAME_HOST_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 117 matching lines @@
   // RenderFrameHost notifying that BeforeUnload has executed so the pending
   // RenderFrameHost is resumed and can navigate.
   // PlzNavigate: This simulates a BeforeUnload ACK from the renderer, and the
   // interaction with the IO thread up until the response is ready to commit.
   void PrepareForCommitIfNecessary();
 
   // PlzNavigate
   void set_pending_commit(bool pending) { pending_commit_ = pending; }
   bool pending_commit() const { return pending_commit_; }
 
+  // Simulates the renderer informing the browser that the frame has an
+  // onbeforeunload handler.
+  void set_has_beforeunload_handlers() { has_beforeunload_handlers_ = true; }
+
   // Creates a WebBluetooth Service with a dummy InterfaceRequest.
   WebBluetoothServiceImpl* CreateWebBluetoothServiceForTesting();
 
  private:
   void SendNavigateWithParameters(int nav_entry_id,
                                   bool did_create_new_entry,
                                   bool should_replace_entry,
                                   const GURL& url,
                                   ui::PageTransition transition,
                                   int response_code,
@@ skipping 13 matching lines @@
 
   // The last commit was for an error page.
   bool last_commit_was_error_page_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRenderFrameHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_RENDER_FRAME_HOST_H_