Explicitly initialize secondary renderers for layout tests.

content/shell/browser/layout_test/secondary_test_window_observer.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2016 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_SHELL_BROWSER_LAYOUT_TEST_NOTIFY_DONE_FORWARDER_H_
-#define CONTENT_SHELL_BROWSER_LAYOUT_TEST_NOTIFY_DONE_FORWARDER_H_
+#ifndef CONTENT_SHELL_BROWSER_LAYOUT_TEST_SECONDARY_TEST_WINDOW_OBSERVER_H_
+#define CONTENT_SHELL_BROWSER_LAYOUT_TEST_SECONDARY_TEST_WINDOW_OBSERVER_H_
 
 #include "base/macros.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 namespace content {
 
-class NotifyDoneForwarder : public WebContentsObserver,
-                            public WebContentsUserData<NotifyDoneForwarder> {
+class SecondaryTestWindowObserver
+    : public WebContentsObserver,
+      public WebContentsUserData<SecondaryTestWindowObserver> {
  public:
-  ~NotifyDoneForwarder() override;
+  ~SecondaryTestWindowObserver() override;
 
   // WebContentsObserver implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
+  void RenderFrameCreated(RenderFrameHost* render_frame_host) override;
+  void RenderFrameHostChanged(RenderFrameHost* old_host,
+                              RenderFrameHost* new_host) override;
 
  private:
-  friend class WebContentsUserData<NotifyDoneForwarder>;
+  friend class WebContentsUserData<SecondaryTestWindowObserver>;
 
-  explicit NotifyDoneForwarder(WebContents* web_contents);
+  explicit SecondaryTestWindowObserver(WebContents* web_contents);
 
   void OnTestFinishedInSecondaryRenderer();
 
-  DISALLOW_COPY_AND_ASSIGN(NotifyDoneForwarder);
+  DISALLOW_COPY_AND_ASSIGN(SecondaryTestWindowObserver);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_NOTIFY_DONE_FORWARDER_H_
+#endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_SECONDARY_TEST_WINDOW_OBSERVER_H_